BAD SERVICE - STILL NO UPGRADE!!!!

I went to MTN Cape Gate center (Cape Town) on Sunday to upgrade my contract, I dealt with Bradley who was very friendly and very helpful, all that was needed was for MTN to increase my credit score or whatever by a measly R68, we are on the 3rd day now and still I have yet to hear from MTN!! I want this sorted IMMEDIATELY or I will have Cell C buy out my contract, I would rather deal with lack of network range than deal with a company with an *********** business plan!!! This is absolutely pathetic! In all my time as a client I have only ever defended MTN but now I want nothing to do with the company anymore!!!