They gave the phone back, it's STILL not working

I handed in my brand new LG G4 handset at Vodacom in the beginning of December as it was restarting every minute and *******ing my photos. I stated that I wanted a completely different handset as I was having so much trouble and inconvenience with this one.<br> <br> After an extensive to and fro that took weeks, Vodacom head office put their foot down and said that I had to take the same handset back as it was \repairable".<br> <br> I took it back and it seemed to work fine. After a week of testing I decided to put my SIM and memory card into it and start using it full time. About an hour after doing this the EXACT same thing happened that did last time - the phone heated up and now restarts once a minute. So much so that I ONCE AGAIN cannot backup the few photos that I took with it while testing it.<br> <br> I am incredibly annoyed that I now have to take the phone back AGAIN"