Thank you! I found a good SFX library for once and crunched the last night to get them in the game xD.
You have a point, the euro coins could have been explained at some point. I think like from the position in the cash register and noone paying odd amounts of <10cts it's kinda clear (at least noone else complained yet apart from you and I doubt they are all European xD). Might add somethings in there.