Sick and tired of Telkom Mobile

I received 2 emails last year that said "your contract is due for renewal". Which I now realize is a false advertising campaign. Due to Covid-19 I could not get assistance at any of the 2 local Telkom Mobile branches in Bloemfontein and decided to cancel the contract online and create some needed savings. I then received an invoice for R3740-00 for early cancellation and tried to arrange that the contract continue for the duration of the time. The whole amount went off my bank account and I am now sitting with a totally new contract and R399-00 being deducted from my bank account monthly, while in reality they now owe ME money. The more I try to resolve the issue the more Telkom mess it up !!!