Bad customer service - Consumer Complaint for PLANET FITNESS - HEAD OFFICE

My card is blocked while I made payment the month of February, and I was told I owe them while all along have been coming and asking if I owe and was told the debit was done and don't owe any amount. To my surprise now I owe the amount of R800? I am not happy with service received because I have almost two months gyming and suddenly I owe. Investigate why was I given wrong information.