Incorrect billing

I had a very bad experience with Telkom since 2021.My contract ended February 2025. They're telesales department kept on phoning me to renew and I told them no please cancel.They blocked both SIM cards and I received no communication from them since March 2025. Today they send me a SMS that I am handed over for legal action for an amount of over R2000.00. I phoned and the agent say that I am still provided with data but the SIM cards are blocked so why must I pay for services that I am not getting it does not make sense. I have been on the line for over or almost over an hour to speak to an agent in they're cancellation department. The other contract ended in June 2025 and since March 2025 no communication from Telkom they just debited my account without arrangements and i reversed the debit order because expect a call with an explanation but in stead they send me an SMS I am handed over for legal action. I am going to report this to the complaints Commission.