Repair department no good

I gave in my Cell C contract phone (that I bought from Makro Alberton) for speaker repair on 19 December 2014 (repair note ***). I eventually picked up a replacement phone on the 30th January 2015. Even though Makro assured me it was a brand new phone as the old one was uneconomical to repair, the new phone did not have a box or protective plastic on. Makro said it was taken off by supplier to test phone. I put my sim card in the \new"phone over the weekend and phone would reboot every minute. Eventually noticed that power button keeps getting stuck. On Monday"