M5 don't buy!

I got my Sony M5 a month ago, a few weeks into having the phone it keeps switching itself off for no reason. The only way I switch the phone on is through plugging it into the charger. <br> <br> This is ******* I moved to Sony from Samsung because of the quality I was obviously wrong I don't want this phone anymore. Extremely disappointed! Don't know why I ever got this phone it's *******!