i thought I'd let you all know, i ordered the above mentioned caps albeit cheapies or not and they didn't fit.. turns out i don't have Pescara's from the Edition 30 and i have OEM A3 alloys (almost identical to the Pescara's) spoke with a guy from PW Motorsport about BBS caps to fit and basically, although they are genuine wheels, they are OEM made by BBS (i know a lot of you may know that) so i can only get Audi centre caps. BBS centre caps are only available for aftermarket BBS wheels. When i say aftermarket i mean not OEM and genuine BBS.
i have managed to find some plastic universal centre caps on the bay for £6 so I'm going to buy them and then buy the £8.99 70mm BBS Stickers from the bay. (would rather all that than the Audi logo on a Golf GTI)