Telkom ripping me off

I had contracts with Telkom when the contracts expires I canceled. To my surprise they kept billing me. I called several times got stories from them. They confirmed the simcards were not used for 2 years, however they kept billing me. Tried to close the bank account they kept debiting. I paid the R880 to close the account. When trying to apply for loan was rejected cause I owed Telkom. Went to ABSA was told to pay R1839.77 which I don't have. On December 2021 contacted their Ombudsman till this day no response or whatsoever. Pls help so stressed