TELKOM ******** CUSTOMERS

I had 2 contracts with TELKOM, the one for data and the other one for mobile phone. The 2 contracts that expired in July 2020, in the first week of August I receive the data from Telkom and I then realized that I did not cancel the contract and I canceled the contract immediately and TELKOM sent me the acknowledgment of receipt and proof that my contract was canceled. at the end of the month, they sent a statement billing me for the contract that was canceled and put data on my account. I called them to make them aware that I canceled the contract. TELKOM acknowledged that there was a mistake on their side but they keep on deducting money from my account. They sent me a case number and they said I should not respond ***0 to the query. TELKOM needs to clear my name as this has an impact on my credit.