Extremely poor customer service from MTN

After 9 phone calls of more than 15 minutes each passing my call from one person / department to the other, I got a settlement amount to cancel the 3 contracts on my name. I drove 20 + Kilometers to the nearest MTN store to pay the amount. Went back to the office to confirm cancellation - just to find out they gave me the wrong amount. I made a second payment via EFT. All of a sudden I must wait for 3 days,.which means an extra month to pay. Absolutely NO service!!