Will apple give me an replacement iphone 4?

If i make an appointment in bath store will they give me a replacement?

heres my situation: my dads collegue at work sold me an iphone 4 for christmas for 200 pounds. That was all my years money gone as i'm only 15. The home button has completely stopped working for no reason, and voice control pops up on a 5 second basis. This prevents me from using the phone at all without great diffculty. I have no money whatsoever left, just enough to get the train down to the nearest store.
I have tried reset recovery and restore 8 times with nothing working, I have tried a hard reboot, cleaning it with a clean cloth, blowing air into the charge socket, everything.
Apparently if you explain nicely and don't get loud they replace it. Is there a chance they will? If not i'm phoneless with no money and 200pounds down the drain, all because of a faulty phone

Do you have the same deals over there as we do in the US Where you can do a 2 year contract and get a new iphone 4 with it for free? Thats the route I would go, otherwise yeah it sounds like the used phone was kind of beat up already when you got it.

Visit: https://selfsolve.apple.com/...Results.do

this will tell you if your phone is still in warranty. If still in warranty you will get a new phone

hope this helps