There's a bid retraction function on ebay, just enter the auction number into it and it'll remove all your bids.
EDIT - here we go - http://offer.ebay.co.uk/ws/eBayISAPI.dll?RetractBidShow&guest=1
What is your NCB: 2
What is your Age: 20
Who is your insurer: Elephant
How much are you paying: Renewal has come up at £469, 10 month policy though
What mods have you done?: None
Admittedly, I stole this off of another forum but apparently he drove in like your typical chav/noob and had music turned up very loudly.
O the shame!!!
When I was 18 with 1 claim, mine was £800. Younger drivers should be looking at Admiral/Elephant/Bell - will save you a lot and they offer bonus accelerator policies (10 months) to get your no claims up faster.