Montly statement incorrect

When I first opened y account there was problem with the bank and the debit order didn't go off for two months however the amount was paid via EFT and proof of payment was sent to the stores manager. My cellphone was activated again however my monthly statement shows I still owe the amount I have already paid via EFT (R798) every month. I have called the store and the call center and was advised they cannot fix it.

I want my monthly statement fixed and nobody is able to assist by fixing their system.