Bad service dstv multichoice S. A

Dstv multichoice have disconnected my sister's account though fully paid, Smartcard no ***, The agent last night 13/08/2025 claimed she owes last month R50 + R55 Reconnection Fee of which she paid on her due date 12th and how can multichoice let a client watch then pay later it's a pro rata subscription as you pay then watch. Please help her get money back or reconnect her subscription as she had paid. ***, I Ms Busisiwe T Madlala.