And even they didn't/couldn't tell me why it happened. they jus replaced it. Took 2 hours though. So long. Was boring myself to death so I went to the Parts section and spoke to the guy about alloys and he recommended me the 17" Exor ones for £135/each without tyre. Retail price is £150, but he can do it bit cheaper.
I actually went in to the spare parts bit, the inside and it was quite interesting and saw the software they used on their computer to bring up all the part numbers/names and detail. I want that software!!