MTN is a NIGHTMARE to deal with

Since my last complaint against MTN on 19/11/2020.. It has been an even bigger nightmare dealing with them. Since the 19th of November I have been trying to do my upgrade. The MTN consultants at 2 different stores have both wasted my time by saying they're trying to have it sorted out. I am now a few days away from my next invoice which means I am going to be bill 6 times more because my contract expired last month and I am now going to be charged out of bundle rates. The only reason I held on with the cancellation is because MTN kept saying they are trying to get my upgrade approved and sorted. Dealing with MTN has been an absolute nightmare and major stress. I have been a good paying customer that had multiple contracts with them over the years and now to be treated this way. I am extremely irrate and disappointed.. I will be switching networks