First DCC in Austria: a cafe I'd been going to with no trouble up until a week ago now prompts with "DCC Offer: 1:EUR 2:USD" when I insert my AA Barclaycard. Strangely enough, it also prompts for USD conversion with my multi-currency ICBC card, so I guess it does have a currency code after all. That or it was inserted in the issuer script I just got that also changed the CVM list to prefer PIN over signature.