MTN CUSTOMER CARE

I have been asking for assistance in doing an upgrade since 29th October. Precious from Ignition group who assisted me with the upgrade told me I would be contacted in 10 working days, found out that DSV called my number that I can't receive calls on when I confirm with precious/Snegugu on which number to be contacted on. Now DSV told me to call mtn so they can change the number but mtn has not sent an email to DSV and now I don't know what to do because I have been given the run so long, even MTN shop at the Pavilion was not able to assist.