Sony Ericson Experia M5

I've received a Sony Ericson Experia M5 the beginning in January. After 3 weeks my phone just switch of at any time. I gave my phone in at Autopage for repairs and now my phone is totally lost. Nobody know where my device is. I will just warn the people:- DON'T TAKE THE SONY ERICSON EXPERIA M5 PHONE. IT IS A BAD PHONE AND IS NOT RELIABLE.