TELKOM ******* ON EXPIRING CONTRACTS - DATA CANCELLATION

I had a LTE data contract with Telkom FOR 2 YEARS that was nearing expire in October 2019. I went into a telkom store (westwood) and requested a cancellation on the contract one month prior to expiry as requested by Telkom. I was given a cancellation email but to date they still requesting payments and also trying to debit my account twice in the same month. i have been to the pavilion and also la Lucia mall and even they cant understand why this is happening. MY CONTRACT SHOULD HAVE BEEN CANCELLED FROM NOVEMBER 2019. TELKOM WANTS ME TO PAY IN EXCESS OF R5000,00 FOR WHAT I DON'T KNOW. Telkom has been doing this to lots of people and also try to debit accounts. 9 Months later and they still trying to get money out of me on a dormant account.