Court dismisses appeal regarding social security overpayment reconciliation under specific 1998 and 2017 regulations.

The court dismissed the appellant's appeal against the lower court's decision to order the reconciliation of social security overpayments. The appellant argued for a different calculation method, but the lower court applied the specific provisions of the Act of 13 October 1998 and the Council of Ministers' Regulation of 21 September 2017. The appellate court upheld the original ruling because the statutory rules governing the detailed principles and procedure for crediting contributions were strictly followed in the first instance.