My phone has a mind of its own, can someone please help me?

Question

Hello,
I bought an iphone 5 and its only one month old. I noticed during a skype call that it kept activating Siri all on its own, which interrupted my call. It also signs out of my apps while I use them, moves the screen up and down, left and right, and continously brings up Siri... ALL ON ITS OWN. When I disabled Siri, it instead activated voice control, which made the problem worse since it started to now CALL PEOPLE and PLAY music purely by itself. This is a real concern to me and it has me very upset. It's a brand new phone.
Things I have done:
The restart, reset and restore.
Taken it in to an apple store to see what can be done. (They had no suggestions because it decided to work well in the apple store)
Taken it to phone repair places.
I'm from Trinidad and going to England where the phone was bought is not the easiest thing to do. But before I go back there to try to exchange the phone, is there ANYTHING I can do? Does anyone else have this problem?
Help would be appreciated
Thank you.

Answer 1

Hello Brian,
In the end I called Apple myself and gave them my information such as the serial number, order number, IMEI etc and they made a case file out of it, I shipped it to the UK from my home in Trinidad and they DID identify a problem with the home button. Truth and in fact, that may or may not solve the problem, but they're supposed to be fixing it and I will receive it soon.
The Apple Techs were really very helpful and they didn't make me seem crazy, but before you call them, make sure you wipe your phone out (restore it to factory settings) and DO NOT backup from the cloud after you're done. They will tell you that's the problem, when in fact, it isn't.