apple.com 1 9687695563 @2015-11-12 I am very disappointed. You have an I phone 4 S, which I use in my company, as a small office when I'm not home. Suddenly the screen freezes and I have to reboot the iPhone's to get it working again. When it starts up, the changed melody calls. Sometimes change the sound again by itself. When it rings, it's not always respond and I lose calls. It has also been incredibly slow. I have warranties and submitted it to repration. Got the message that it had passed all test and a bill of $ 43.00 With the message that the continued problem I could take it back, yes, and if it still bestos test I would get ydderligere a bill of $ 43.00. I daren't take it again, even though the problem is still there when I can not see that Your test would be different next time. I think it's very poor service and feel that could just as well say I am filled with lies. I had expected better service from Appel.