Colin19 can I just say thank you for your help. However i have found what the issue is. Because I have OCD I have left the back plastic cover on the phone which I cut the bottom tag off to fit into my case it was the back plastic cover scraping on the phone case I feel like a complete ***** but thank you for your help appreciate it.
This clicking noice doesn't seem to happen all the time if I just place my thumb gently on the home button no noice. If I place a slight bit of preasure in the button as if I was typing makes a clicking noice
That's what the noise seems like. The phone is only 3 days old which had the screen protector already on it. It doesn't seem like it is coming away at all. I may pop in to the ee shop tomorrow just to make sure.