Dishonestly and lack of capability to deliver on advertised benefits. MTN!

MTN is incapable of delivering on their advertised promises. I again, against my better knowing upgraded my account 1 July 2018. Whilst in the store the gentleman that helped me phoned the 135 assist line to activate my 30GB free data and other issues to be resolved. His own operator on the phone did not want to assist. I had to make more than 6 calls already to enquire on my data, 3 of which I recorded. Every time I get told I have to resubmit my contract (paperwork) WHY??????? THEN THEY PROMISE A SUPERVISOR WILL PHONE ME BACK. I'M STILL WAITING!!!!!! PATHETIC ******.