Telkom complaint

I had a contract that came to an end November 2020, i was only able to cancell the contract in December due to covid and customer services not fully functional, even tried to cancel through the Telkom app, end of Nov debit order of R99 came thriugh,i disputed it , then december the same i disputed it, now suddently my account is debited a totak if R650 ( not exact) i disputed it, when i call the customer agent tells me it was my duty to call them and enquire about the debit orders, so everytime i dispute they charged me a penalty of R200 hence now im owing R600, i have put through a complaint, no one called and no response, as i speak another debit of R241 just went out.I really dont understand that your account can be debited anytime,anyday as they with,without consultation.I will keep disputing the funds until someone gives me a call and explain, but still im not prepared to pay all these penalties,since they are not part of my contract.They informed me im on a month to month contract that im not aware off and did not agree to.I will not recommend telkom to anyone,they can call everyday for you to upgrate,the minute you dont,they find ways to still get money out of you.I am very unhappy, we need to be protected from such doings