Extremely Poor Customer Service

Extremely Poor Customer Service. It's now more than 2 weeks I requested to upgrade my contract yet you cannot supply me with the CAT S62 PRO phone and as you don't stock Sony phones I won't upgrade as the other makes are really poor quality and breaks easily (most probably that's why you sell these poor quality phones to sell more as you know they break easily) I'm getting impatient and may decide to seek another service cellular provider leaving MTN as one of their oldest customers (from 1997 with MTN). You customer services is getting so poor it's not worthwhile phoning any more as nobody knows anything in helping, I should know as I said I'm one of the longest by MTN. I take a bet you won't even contact me in the next week so poor is your services to date.