I think I may have found the problem. After looking at my failed prints photos a couple of people suggested that I wasn't printing PLA. I got in touch with my PLA supplier and they have confirmed they sent me one white PLA, one blue PLA and two black ABS. All the time we have been trying to work out was wrong with my printer and it was that I had ABS on the spool not PLA.
We, well I say we I mean my friend and his Dad have tried a lot of things to get my printer going right.
I am doing a print now. I am 100% using PLA to print. Hopefully this should go ok now.