Bad Service Continues

I went back to the MTN store on the evening of 21 August, and this time, the store manager (Rowena) confirmed that my phone is indeed still in the store. She said that they had tried to contact me but couldn't reach me! I find this totally unacceptable. How hard could they have tried to reach me in the 3 months that my phone was with them? They have my phone number, my email address, and at the very least they could have sent me a letter! Furthermore, during this period, I had gone to the store 4 times personally and each time (after checking in the back!) I was told that the phone was at the repair centre and that they would contact me. It turns out that the *********** staff member Niyaaz Burton who had accepted my phone on 17 May- and supposedly turned off the \Find my iphone"- actually did not do so. The saga continues.... on 9th Sept. I got a call from the Repair Centre to say that since the WARRANTY on my phone EXPIRED last month"