The Weisensels appeal from an order dismissing their petition for review of a Department of Health and Social Services (DHSS) decision denying their request for increased adoption assistance payments. The issue is whether hand delivery of a copy of the petition in an envelope addressed to an attorney at the Office of Legal Counsel at DHSS constituted sufficient service upon DHSS under sec. 227.53(l)(a)l, Stats.1
*641We conclude that the attempted service did not satisfy sec. 227.53(l)(a)l, Stats. Because failure to comply with sec. 227.53(1), Stats., deprives the circuit court of subject matter jurisdiction, the circuit court correctly dismissed the Weisensels1 petition for review. Therefore, we affirm.
BACKGROUND
The Weisensels requested an increase in adoption assistance payments from $332 to $2,000 per month to care for their daughter Kristina's special needs, including placement in a residential treatment facility. On July 22, 1992, DHSS issued a final decision denying the request. The Weisensels filed a petition for review of the department's decision in the circuit court for Dane County on August 11, 1992. On that same date, an envelope containing a copy of the petition and addressed to Attorney Therese Durkin was delivered by hand to the department's Office of Legal Counsel (OLC). Durkin had represented the Bureau for Children, Youth and Families, a subunit of DHSS, in the administrative proceeding.
DHSS moved to dismiss the petition for review on September 1, 1992, on the grounds of insufficiency of process and lack of jurisdiction. In an affidavit supporting the motion, a program assistant for OLC averred that OLC accepts service of any pleading naming DHSS as defendant or respondent, if the pleading is received by certified mail or personally served upon the DHSS Office of the Secretary or OLC. On the other hand, any document addressed to one of the attorneys at OLC is routed to that attorney's mail box. According to the affidavits submitted by DHSS, DHSS had not admitted service of the petition.
*642The trial court granted the motion to dismiss. The Weisensels moved for reconsideration, and their counsel submitted a supplemental affidavit. Counsel averred that in a previous case, her firm had sought judicial review of a DHSS denial of additional adoption assistance payments and served Durkin personally with a copy of the petition. In that case, DHSS admitted service rather than object. The trial court denied the motion, and this appeal ensued.
STANDARD OF REVIEW
Resolution of the issue on appeal requires application of sec. 227.53(1), Stats., to an undisputed set of facts. Therefore, the issue presented is a question of law which we review de novo. Trustees of Ind. Univ. v. Town of Rhine, 170 Wis. 2d 293, 298-99, 488 N.W.2d 128, 130 (Ct. App. 1992).
DECISION
Under sec. 227.53(l)(a)l, Stats., judicial review of an agency's decision is instituted "by serving a petition . . . personally or by certified mail upon the agency or one of its officials," and filing the petition with the clerk of the circuit court's office. (Emphasis added.) Section 227.01(1), Stats., defines an agency as "a board, commission, committee, department or officer in the state government, except the governor, a district attorney or a military or judicial officer." Under sec. 227.01(7), Stats., an "[ojfficial of the agency" refers to a secretary, commissioner or member of a board of an agency.
The Weisensels served Durkin, an attorney in the OLC, with a copy of the petition for review by personally delivering an envelope addressed to her to the *643room where the OLC is located. Even if we were to assume that this constituted personal service upon Durkin, we conclude that this attempted service did not conform with sec. 227.53(l)(a)l, Stats.
Durkin does not qualify as either an agency or an official of an agency as those terms are defined in sec. 227.01, Stats. The only individuals who come within the meaning of agency are officers in the state government, and one could not seriously contend that Durkin is such an individual. Nor could one reasonably argue that Durkin is a DHSS official by virtue of being the secretary, a commissioner or member of a board of DHSS.
It is well established that strict compliance with the service requirements of sec. 227.53(1), Stats., is essential to the circuit court's subject matter jurisdiction. See Sunnyview Village, Inc. v. DOA, 104 Wis. 2d 396, 399, 311 N.W.2d 632, 634 (1981); Wisconsin's Envtl. Decade, Inc. v. Public Serv. Comm'n, 84 Wis. 2d 504, 515, 267 N.W.2d 609, 616 (1978); Johnsonville Sausage, Inc. v. DOR, 113 Wis. 2d 7, 9, 334 N.W.2d 269, 270 (Ct. App. 1983) (per curiam). Therefore, because the Weisensels failed to comply with sec. 227.53(l)(a)l, Stats., the circuit court lacked jurisdiction and was required to dismiss their petition.2
*644The Weisensels present three arguments against applying the traditional rule which we will address in turn. First, they claim that sec. 227.53(l)(a)l, Stats., is silent as to how one personally serves an agency, and that their method of serving DHSS was reasonable. They maintain that DHSS was able to file the motion to dismiss within twenty days of the petition's delivery, the time allowed under sec. 227.53(2), Stats., for DHSS to respond to a properly served petition.
This argument is flawed in several respects. Contrary to the Weisensels' assertion, the motion to dismiss was filed on September 1, 1992, or twenty-one days after the petition was delivered to the OLC, suggesting that DHSS was prejudiced by the method of service. Furthermore, the test is not whether the method of service was reasonable or whether the agency was prejudiced, but whether the service strictly complied with statutory requirements.
Finally, we disagree with the Weisensels' position that it is possible to serve an agency such as DHSS personally. A party does not serve an entity personally. Rather, a party personally serves an individual who is authorized to accept service on the entity's behalf.3 Thus, under secs. 227.01 and 227.53, Stats., when DHSS is the named respondent, a party who would prefer to serve a petition personally, rather than by certified mail, should serve it on a DHSS official, who *645in most cases would be the secretary of DHSS.4 We *646note that our construction does not render superfluous any part of the clause, "serving a petition therefor personally or by certified mail upon the agency or one of its officials." The clause anticipates that in some instances, the agency would be an individual officer in the state government, rather than an entity. In such cases, it would be possible to serve the agency either personally or by certified mail.
Next, the Weisensels essentially argue that because DHSS admits service when pleadings or petitions are hand delivered in envelopes addressed to OLC, it should be estopped from objecting to service where the envelope was addressed to an OLC attorney well acquainted with their case. We reject this argument. The circuit court cannot acquire subject matter jurisdiction by waiver or consent of the parties, or by estoppel. Wisconsin's Envtl. Decade, 84 Wis. 2d at 515-16, 267 N.W.2d at 616. Moreover, service of a petition on DHSS by hand delivery of an envelope addressed to the OLC is defective under secs. 227.01 and 227.53, Stats. Thus, DHSS errs by admitting service, and the circuit court is without subject matter jurisdiction in such cases.5
*647Finally, the Weisensels contend that dismissal of their petition under these circumstances is unnecessarily harsh. They maintain that we have the discretion to allow this case to proceed despite the fact that service was technically insufficient. We disagree.
Dismissal may be a harsh penalty for failure to comply with statutory service requirements, but "uniformity, consistency and compliance with procedural rules are necessary to maintain a simple, orderly and uniform system of conducting business in the courts." Miller Brewing Co. v. LIRC, 173 Wis. 2d 700, 707, 495 N.W.2d 660, 662 (1993). Moreover, "[i]f the statutory prescriptions are to be meaningful, they must be unbending." Id. While the supreme court has permitted exceptions to the general rule that parties must strictly comply with sec. 227.53(1), Stats., to confer subject matter jurisdiction upon the trial court, those exceptions are few and limited to the facts of the particular cases. See Wisconsin's Envtl. Decade, 84 Wis. 2d at 504, 267 N.W.2d at 609; Evans v. Department of Local Affairs & Dev., 62 Wis. 2d 622, 215 N.W.2d 408 (1974); Hamilton v. DILHR, 56 Wis. 2d 673, 203 N.W.2d 7 (1973).6
*648In Wisconsin's Environmental Decade, the court excused the failure to serve all of the nearly 150 parties who appeared at the Public Service Commission's (PSC) hearings because of its concern that such a requirement would inhibit parties from challenging PSC orders. The Evans court held that the trial court's jurisdiction was not affected by the faulty caption on a petition for review which was served on the proper agency. Finally, in Hamilton, the court refused to deny a pro se litigant his day in court where it took the agency four attempts to issue a valid order and the clerk of the circuit court's failure to file the petition was unreasonable.7
The case before us is distinguishable on the facts from those cases where the supreme court has allowed *649something less than strict compliance with the ch. 227, Stats., service requirements. We are bound by the decisions of our supreme court. State v. Lossman, 118 Wis. 2d 526, 533, 348 N.W.2d 159, 163 (1984). Therefore, because none of the exceptions apply, we must follow the general rule and conclude that the trial court lacked subject matter jurisdiction.
By the Court. — Order affirmed.
Section 227.53(l)(a)l, Stats., provides in relevant part:
Proceedings for review shall be instituted by serving a petition therefor personally or by certified mail upon the agency or one of its officials, and filing the petition in the office of the clerk of the circuit court for the county where the judicial review proceedings are to be held.
The dissent concludes "that by filing the record with the circuit court instead of moving to dismiss the Weisensels' petition for review, the department waived its claim that the circuit court lacked personal jurisdiction over it." Dissent at 654. While this assertion may be valid, it is irrelevant to this case. The issue in this case is whether the circuit court acquired jurisdiction over the subject matter instead of personal jurisdiction over DHSS. As the dissent correctly notes, subject matter jurisdic*644tion cannot be conferred by waiver. Id. (citing Cudahy v. DOR, 66 Wis. 2d 253, 260, 224 N.W.2d 570, 573 (1974)).
See subsecs. (3) through (5) of sec. 801.11, Stats., which specify the individuals to be personally served with a summons in a civil action when the defendant is the state, a political corporation, or a domestic or foreign corporation.
With respect to service of the petition, the DHSS final order states:
The appeal must be served on the Department of Health and Social Services, P. O. Box 7850, Madison, WI 53707-7850. The appeal must also be served on the other "PARTIES IN INTEREST" named in this decision. The process for [c]ourt appeals is in [s]ec. 227.53 of the statutes.
Contrary to the dissent's assertions, this statement did not inform the Weisensels that they must serve DHSS at the post office box nor did it "rewrite sec. 227.53(l)(a)l, Stats., to eliminate personal service as one way to serve the department." Dissent at 650. The inclusion of the department's post office box by no means limits the petitioner to service by mail. When referring to the statute as directed, the petitioner finds that he or she may either serve the petition by certified mail at the address specified by DHSS, or as noted above, by serving a copy personally on an official of DHSS, in this case, the secretary.
We also disagree with the dissent's claim that the instructions lack the specificity required by Sunnyview Village, Inc. v. DOA, 104 Wis. 2d 396, 311 N.W.2d 632 (1981). In Sunnyview, the issue was whether the party was required to serve a subunit of the department instead of, or in addition to, the Department of Administration (DOA). The court concluded that service on the department was sufficient, reasoning that "[a] person aggrieved by an administrative decision should not have to guess which governmental entity to name and serve as the respondent . . . ." Id. at 412, 311 N.W.2d at 640. DHSS has eliminated that guesswork by informing the petitioner that DHSS is the entity to be served. While the Weisensels could have concluded that a second copy would have to be served on the Bureau of Children, Youth and Families because of the instruction regarding the parties in interest, there is no indication that they attempted to serve two copies or were misled in this respect. Finally, we will not fault DHSS or any agency for referring the petitioner to sec. 227.53, Stats., for additional information. Agencies can easily fall into the trap of misleading *646a party when they attempt to condense and simplify pertinent information contained in the statutes.
The dissent argues that "the courts cannot allow agency internal administrative procedures to determine whether a person aggrieved by his or her government will be heard." Dissent at 652. Thus, in the dissent's view, the fact that OLC accepts service of any pleading naming DHSS as a respondent when served in an envelope addressed to OLC "destroys the ... argument that the Weisensels were required to serve the secretary or some other official of the department." Id. at 651. We accept the premise that the agency may not dictate to the courts the *647procedures to be followed for serving a petition. However, rather than concluding that DHSS should be estopped from objecting to the insufficiency of service, we conclude that OLC has erred in admitting service in similar cases and should alter its procedures to conform with sec. 227.53(1), Stats.
Sunnyview, 104 Wis. 2d at 396, 311 N.W.2d at 632, could arguably be regarded as an exception to the rule as well. In Sunnyview, the court held that service on DOA satisfied the statutory requirements even though it was the Division of Nursing Home Forfeiture Appeals, a subunit of DOA, which rendered the decision the petitioners sought to have reviewed.
The Weisensels unsuccessfully attempt to fit their case within the facts of Hamilton. The pro se petitioner served a records custodian in the Equal Opportunities Division of DILHR. That individual had sent letters to the petitioner stating that he was the department's legal counsel and duly authorized agent. The court found that the petitioner had been misled and had reasonably believed that service upon the records custodian would be "upon the agency or one of its members or upon its secretary or clerk" under sec. 227.16(1), Stats. (1971). Hamilton, 56 Wis. 2d at 685-86, 203 N.W.2d at 13-14.
The case at bar bears little resemblance to Hamilton. The Weisensels have been represented at all stages in this case. In addition, even though counsel has averred that her firm served Durkin in a separate case without objection, that does not mean that Durkin held herself out to the Weisensels as the proper individual to be served in this case. Counsel's averments raise the estoppel argument once again. But as previously noted, subject matter jurisdiction cannot be conferred upon the circuit court by estoppel. Wisconsin's Envtl. Decade, 84 Wis. 2d at 515-16, 267 N.W.2d at 616.