These are Overclockers standard RMA terms
https://www.overclockers.co.uk/support-details and experience with XFX as reported in the Scan Forums is absolutely dire
Of course it may have improved as this was a while ago
Just to add - I have never used Overclockers (they used to have a really bad reputation which is no longer the case) but for major items, where economic (not too much more expensive) I use Amazon because of their really good return procedure
Example my monitor where I returned it due to a stuck pixel and almost any other supplier would have rejected it
While messing about I did a quick search and found this
http://forums.hexus.net/pc-hardware-...-improved.html so they will definitely be on my list in future