Sony M5 Xperia Not working after 3 weeks of Purch.

Good Day Sony South Africa <br> <br> I have taken out a phone with Cell C, i barley had the phone for three weeks and it had to go in for repairs so i am extremely dissapointed in the product itself!<br> <br> The phone switches off even though the baterry is full, the only way to put the phone on is with a charger!<br> <br> I sent my phone in on the 23 December 2015 and got it back yesterday 10/01/2016<br> <br> I am highly upset that i am a paying a monthly instalment of R300.00 for something that is new but broken, it is a lot of money to be spending on something that has not been working !!<br> <br> <br> The phone still switches off and i have to keep on plugging it on with a charger... This is unacceptable since i am a client and i am paying my instalment every month!<br> <br> <br> I will be sure to warn my friends and family about your product and what situation this has me in!!<br> <br> <br> Firstly the amount of petrol i am spending to go back and forth to the store secondly the amount of money i am spending !!!<br> <br> This is crazy!!<br> <br> Kind regards<br> Trinesh<br> <br>