Shocking service - MTN wireless WiFi

Disgusting service. I bought a wireless WiFi contract at the Nicolway branch over 2 months ago and I'm still trying to get into the contract I actually signed up for. They have loaded me onto a 30 gig monthly contract but what I signed for was there 120 gig contract. I logged 2 queries at the branch to get this fixed but still not resolved. I then logged a call via the call centre and still not resolved. I have now logged a second call via the call centre and must now wait another 3 to 7 working days before I can call back to see if they have corrected their error. Extremely *********** and shocking service. How is it that I have had to sign up for a contract with Rain to make up the data shortfall I have every month due to MTNs error. I also tried to cancel the contract but this seems even more difficult to achieve as the MTN retention department doesn't answer their line probably due to them being inundated with customers trying to cancel their contracts.