The issue for consideration is whether the trial court properly dismissed plaintiffs case for lack of subject matter jurisdiction and lack of personal jurisdiction.
[1] We first address the question of subject matter jurisdiction. Jurisdiction of the court over the subject matter of an action is the most critical aspect of the court’s authority to act. Subject matter jurisdiction refers to the power of the court to deal with the kind of action in question. W. Shuford, N. C. Civil Practice and Procedure § 12-6 (1981).
Subject matter jurisdiction is conferred upon the courts by either the North Carolina Constitution or by statute. Article I, § 18 of the North Carolina Constitution states: “All courts shall be open; every person for an injury done him in his lands, goods, or reputation shall have remedy by due course of law; and right and justice shall be administered without favor, denial, or delay.”
Subject matter jurisdiction is statutorily conferred on the trial divisions of the General Court of Justice in this state under N.C.G.S. § 7A-240 which states:
*668Original civil jurisdiction generally.
Except for the original jurisdiction in respect of claims against the State which is vested in the Supreme Court, original general jurisdiction of all justiciable matters of a civil nature cognizable in the General Court of Justice is vested in the aggregate in the superior court division and the district court division as the trial divisions of the General Court of Justice. Except in respect of proceedings in probate and the administration of decedents’ estates, the original civil jurisdiction so vested in the trial divisions is vested concurrently in each division.
It is, therefore, evident that except for areas specifically placing jurisdiction elsewhere (such as claims under the Workers’ Compensation Act) the trial courts of North Carolina have subject matter jurisdiction over “all justiciable matters of a civil nature.”
The contract dispute between the parties in this case constitutes a “justiciable matter” that is “cognizable” in our trial courts. Therefore, the trial judge’s determination that there was no subject matter jurisdiction was in error.
[2] We now turn to the question of whether the trial court correctly determined that there was no in personam jurisdiction over the defendant.
A court can render judgment against a party “only if there exists one or more of the jurisdictional grounds set forth in G.S. 1-75.4 . . . .” N.C.G.S. § 1-75.3 (1983). The first question to be answered then is whether defendant meets one of the twelve categories of circumstances set forth in N.C.G.S. § 1-75.4.
Plaintiff contends that the applicable statutory grounds are set forth in N.C.G.S. § 1-75.4(5)(c) which states that there is jurisdiction in an action which “[ajrises out of a promise, made anywhere to the plaintiff or to some third party for the plaintiffs benefit, by the defendant to deliver or receive within this State, or to ship from this State goods, documents of title, or other things of value.”
In reviewing the evidence, the contract required that the balance of the purchase price was to be paid to Ronnie Beard Training Stables which was located in North Carolina. Therefore, *669the action arose out of defendant’s failure to honor the promise to deliver the cash due under the contract to Ronnie Beard Training Stables. N.C.G.S. § 1-75.4(5)(c) would therefore apply and our “long-arm statute” allows jurisdiction.
The next step in the process would normally be to determine if the requirements of due process have been sufficiently met to impose in personam jurisdiction over defendant.
As to this question, defendant’s failure to timely raise the defense and her admission of jurisdiction in her answer, precludes her from prevailing on this point.
The manner of presenting the defense of lack of jurisdiction over the person is governed by Rule 12 of the North Carolina Rules of Civil Procedure. The pertinent provisions of that rule are as follows:
(b) How Presented. Every defense, ... to a claim for relief in any pleading, . . . shall be asserted in the responsive pleading thereto . . ., except that the following [defense] may at the option of the pleader be made by motion:
(2) Lack of jurisdiction over the person,
(g) Consolidation of Defenses in Motion. A party who makes a motion under this rule may join with it any other motions herein provided for and then available to him. If a party makes a motion under this rule but omits therefrom any defense or objection then available to him which this rule permits to be raised by motion, he shall not thereafter make a motion based on the defense or objection so omitted . . . .
(h) Waiver or Preservation of Certain Defenses.
(1) A defense of lack of jurisdiction over the person . . . is waived (i) if omitted from a motion in the circumstances described in section (g), or (ii) if it is neither made by motion under this rule nor included in a responsive pleading or an amendment thereof ....
Rule 12 provides that a defendant may raise the defense of lack of jurisdiction over his person by a pre-answer motion or by *670a responsive pleading. If the defendant fails to proceed in this manner, the defense of lack of jurisdiction is waived. Simms v. Stores, Inc., 285 N.C. 145, 203 S.E. 2d 769 (1974).
In the case at hand, defendant never raised the defense of lack of jurisdiction over the person either by way of a pre-answer motion or by including the defense in her answer. In fact, there was never a jurisdictional motion before the court. Defendant raised the defense at the close of plaintiffs evidence by moving for a directed verdict. According to Rule 12, a motion for a directed verdict is not an appropriate method of presenting the defense of lack of jurisdiction over the person. Since defendant neither made an appropriate pre-answer motion, nor raised the defense in her answer, the defense is waived.
In addition, defendant made a voluntary appearance in North Carolina to defend this case. She also filed a counterclaim against plaintiff along with her answer. Once defendant submitted herself to the jurisdiction of the court, then the defense of lack of jurisdiction over the person was no longer available to her. A defendant submits to the jurisdiction of the court by formally entering a voluntary appearance, by seeking some affirmative relief at the hands of the court, or by utilizing the facilities of the court in some manner inconsistent with the defense that the court has no jurisdiction over her. Simms v. Stores, Inc., 285 N.C. at 156, 203 S.E. 2d at 776.
Finally, defendant admitted to the existence of jurisdiction in her answer. Plaintiff, in his complaint, alleged the following:
2. The Defendant is a citizen and resident of Cincinnati, Ohio. Jurisdiction ... is obtained under North Carolina General Statutes 1-75.4.
In her answer, defendant responded as follows:
II. That the allegations contained in paragraph two of the plaintiffs complaint are admitted.
Facts alleged in the complaint and admitted in the answer are conclusively established by the admission. Champion v. Waller, 268 N.C. 426, 150 S.E. 2d 783 (1966). Defendant admitted the existence of jurisdiction in her answer. That fact is now conclusively established and cannot be disputed.
*671Based on the above circumstances, we hold that the trial court’s dismissal of plaintiffs complaint for lack of jurisdiction was error.
Reversed.
Judges Arnold and Phillips concur.