MTN CONTRACT NEVER AGAIN. ****** nonsense.

I had data contract with mtn, at the end of the contract I canceled it. They even gave me a reference number and told me they will debit for the last time end of April 2023 and the did just that. Come end of May 2023 Mtn debit my account even more money for that matter. I reversed it but I'm getting their threatening smses everyday. Yesterday I received another sms telling they will debit double the amount month end of June 2023. I cannot be subjected to pay for their poor service whereas I don't need it anymore. What Mtn is doing is *****, what are you charging me for because my contract ended and I don't need your service anymore. I was not even enjoying your service because there is forever no coverage. You are abusive and toxic. Doing business with you is a nightmare. You disgust me. I will never in my life do business with you. You sell us lies with your data, your night data are so useless. You take your customers for granted ****** *******.