Never trust MBD call centre to clear after you have paid in full , never clear your name you still remain overdue and writing off...

Good day everyone i wouldn't advice one to believe MBD call center agent when they say the will give you discount and after you have paid they clear your name... on June 2022 i recieved a call from a call centre agent about my pick n pay store account that was handed over to them because i wasn't paying the acount , we made an arrangement with the call centre agent and they said they are giving me a discount to pay for 3 month and my account will be paid in full, i paid end of July , August my last payment was on 28 of September, 1stly they took too long to send me the paid up letter (proof of payment) i had to call them to send me a proof of payment... on December 15 i recieved an Sms from Vvm another call centre about the same Pick n' pay account saying my account is overdue how beacause i paid up that account, its been 5months now and my account hasn't been cleared its still reflect as written off and overdue please guys help to clear my name. And take note never trust MBD it easy for them to call and remind you about the payment but difficult to clear your name. ..