frustrated and inconvenienced

On this date 23.10.2015 I had my contract upgraded. It was not without hiccups, I was promised 30 gig of data which was to be divided in 3 months. This I received after several queries. <br> <br> My new I-phone 6s froze, I then submitted to Eastgate branch on the 20.11.2015 where I had the contract up-graded for repairs. I was informed that it will take 5 to 7 days before my phone is repaired. Over a week later, without any communication from MTN I called and was informed that my phone may take 3 weeks in repairs, <br> Because im not insured I may not get a courtesy handset. This is very inconveniencing. How do I communicate in the interim, i must still pay for a full month subscription whilst not in use? these is frustrating as these is software problem<br>