Non-existant service

I have tried calling MONDO on numerous occasions and they have not answered even once. I am so annoyed, I wasted an hour + of airtime waiting for them to answer! All I want to do is speak the manager of the sales rep. to sort out the ****** up on my MTN contract! They signed me up on Sim only instead of the requested iphone 17 contract upgrade! It's been almost 2 months! MTN can't even help me other than to escalate it to this outsourced company! I have never experienced such disregard! I have no faith in this company what so ever, typical sales, get your money and move on!