MTN IS A ****

I have been calling MTN (135) since December 2023 to cancel my contract because it expired, everytime I call and transferred to the cancellation department the phone cut off after I have told the consultant that I want to cancel. On 10th January 2024 I managed to speak with one after a 1000 attempts to get attended to without being cut off and she told me I bought the phone while it was on promotion and therefore she cannot do the cancellation but the sales department and further said she escalated the case to them for them to attend to it. Till today the matter have not been resolved and MTN is still deducting from my bank account, I have just called them 5 times this morning everytime after I have told the consultant that I want to cancel the phone cuts off AS USUAL. I am SICK AND TIRED of MTN and therefore will port all my numbers to other service providers this is nonsense!!!!!