SICK AND TIRED OF NO RESULTS!!!!

For more than 15 years I have had my account with these people. Since the 20 November 2020 I have been trying to upgrade my contract but all I get is excuses! It started with they have moved over to a new system, then my account is in the rears. I sent through all the proof of payments and still I battle to get this account sorted out. I have has 33 different reference numbers and I have been to the MTN offices to speak to consultants 7 times and still no answers!!! PLEASE TELL ME WHAT I NEED TO DO TO GET THIS ACCOUNT SORTED OUT?? IT IS A PITY THAT A PERSON ALWAYS NEEDS TO GET NASTY BEFORE ACTION IS TAKEN!!