Quick to charge but not to fix the phone!!!

My phone had frozen and was handed in early December for repairs, I did not receive any feedback and went back to the Gateway store on the 16 December to enquire. On the 17 December I received an sms and I was advised by the Sales agent at Mtn to reply yes so it will get fixed.<br> The sales agents are aware that my contract was taken last year and still under warranty and has a guarantee when it was handed to them also the same sales agent who took the phone in for repairs had signed my contract.<br> Now we are in January and I still have not received my phone and I am expected to pay? <br> This is unacceptable! Further to that when you call for feedback on the repairs it goes to the MTN call center who has all our information so clearly this is a way for MTN to make quick money and rob people!<br>