Poor service from MTN

I first app**** for an upgrade on the 15th November for my self and on the 20th November for my wife MTN mixed he calls up and put my wife's number on my contract. when her upgrade was done they cancelled mine with out telling me. on the 26th November her one arrived so i decided to apply again. today is the 7th December and even after repeated requests for an update on what is happening I have hear nothing, they acknowledge my requests as having been seen and that is ii nothing more. I have bee a client of MTN since 1994 and this is the way I get treated. if it was not a problem to change phone numbers I would have given up ages ago.