OPINION

The order of the lower court is vacated and the case is remanded for a full hearing on the merits in accordance with Commonwealth ex rel. Welsh v. Welsh, 222 Pa.Super. 585, 296 A.2d 891 (1972). Contracts between husband and wife concerning child support are not binding upon the courts. MacDougall v. MacDougall, 397 Pa. 340, 155 A.2d 358 (1959).