Telkom billing issues

For over a year I endless issues with telkom 1 I took out 2 data contract worth R 60.00 The first month they debit my account for only 1 contract and not the other. I questioned it and found out they loaded someone's else fnb details for my second contract. I then had to go make a payment at pep. The next month my account was not debited. And I called went in to the branch and was told to pay vis eft. I took out another celle phone contract and things just got worst after I was garuteed by the branch my account is sorted I I informed them I will not do another contract until it is sorted. I even changed my payment date to the 15th so my eft payment reflect in time. But I'm still having endless issues I pay my account on the 31st of each moth so the money reflect in time but for some reason it is billed as a late payment my account has been suspended. And I get charged 202 every month for late payment. And my bill has moved from 475 to over 1000rand which I will not pay as nobody can give me answers and this is affecting my credit score. I would love to have this issue resolved immediately and I want my account opened