PATHETIC CUSTOMER SERVICE

I wish i give these a ****** minus. I took out a telkom contract via Mondo. In September i paid before the debit date but was still charged fees even though the consultant promised me that it would not happen. In October the debit was so early november i received a sms from Mondo with a link to make an instant payment which i did. That payment was never allocated to my telkom account even till this day. I send proof of payment numerous of times to different people. 3 of the consultants told me the POP was received and sent to the relevant department I must call back in 24hours. Still nothing. This week again i send POP to a consultant, Two of them put the phone down in my ear. In the meantime my credit score is suffering because wrong information is getting recorded, I have no idea what to do. Can it take 3months to allocate proof of payment?????