Frustrated customer

I would like to express my frustrations with Foschini. I paid my monthly installment in December on the 24th. But I got notification that I haven't made payment.

I received my monthly statements via email and I am able to pay online using snapscan. That has always been how I paid my account. I have sent proof of payment, I have sent emails enquiring on the allocation of my payment because this will affect my credit score. I am in a process of buy my first property and I do not want this affecting me. No has come back to me since. When I call, I am told that they are still checking and someone will call me back. I send follow up emails, I get a response that this will take 5-7 working days.