Telkom Very Poor Service

I missed a payment on my sim card I called telkom in Nov 21 to advised that I have changed banks I provided the new banking details but it was not updated on telkom side therefore the debit order rejected I then made an EFT on 24Dec I was requested to send the proof of payment to Dicuments which I have done several times till today 16feb my payment is still not allocated I’ve been calling telkom since Dec but the payment is still outstanding & my line has been suspended what does a person have to do to get payment allocated the money is in Telkoms bank account all the consultants keep requesting me to send proof of payment which I’ve done on numerous occasions with no JOY