Having upgraded to a new Samsung Galaxy S7 in May, the phone have developed a fault in that it continues to turn its self off. It has been returned to Samsung twice, and on both occasions we were assured that the problem had been resolved. The last time they returned it too us it would not even turn on. More phone calls to Samsung, who have the worst customer service team I have ever dealt with, only to be told that the device must again be returned too them. They have flatly refused to replace the handset despite it only being 4 months old. Never again will I ever buy another Samsung product. Just read in the news that they have had billions wiped off their share price due to the Note 7 catching fire - GOOD - hope they go bust!