new phone not working (1 week old)

i upgraded my contract on the 23/05/2015 and got my self a new microsoft 640 lm. when receiving in coming calls i relised that there is something wrong, so i first checked the setting. after checking the settings i tried again phoning myself, still complete silence. on the 31/05/2015 i took it back to cell c mall of the north, just to be informed that i am 1 day to late to do a out of the box repair, and that they need to send it away.<br> <br> friday 5/06/2015 i phoned to find out what is going on with the phone, just to be informed that Cassious is not in and he will phone me back. still Cassious has not phoned back.<br> <br> thursday 11/06/2015 i phoned once again cell c mall of the north, i spoken to one of the ladys. a manager. first she told me no they cant find the phone and the repairs department doesnt have any thing, so she first have to phone Cassious to find out what is going on. She phoned me back to let my know she found the phone but they havent start repairing it. i have to wait 21 days before they return it.<br> <br> NOT N HAPPY CUSTOMER....<br> <br> now my problem i must pay the account, but i dont have the privelage of using the phone..