Is it the same one? Nearside?
Hope you get it sorted (regardless of whether I get a bung or not ha)
Oh, and make sure you still have your original, or get one on the new light as they can only be bought with the whole light unit as far as I know. Hence why I am after one, as I really don't want to buy a whole light just for the bung.
And a user on here called pjmspeedy sells genuine Audi stuff new for lower prices so may be worth asking him too.