Horrible service from MTN

If i could give mtn less than one star i would. I've experienced the worst customer service ever. A consultant at Mondo tried to **********ly load upgrades on my name, i had to make numerous phone calls to ensure that these attempts were cancelled. I eventually upgraded my one number and everything was going well until one of MTNs consultants decided to cancel my brand new upgraded contract after a month. Leaving me wilth a bill of over R17000.00. No phone call or any contact was made with me. I logged a call 17/10/2022 to have this error corrected. I was assured that it will be resolved within 12 to 24 working hours. Still to this day nobody has contacted me. When i call i dont get answers. MTN has now attempted to debit my bank account for this amount. I am appalled at the poor service delivery by this company. I will never refer anyone to this company ever again. Nothing has been done since 17/10/2022.