This is not so much DCC but Global Blue taking maximum advantage of multi-currency processing
http://www.hongkongcard.com/forum/fo...hp?id=6982&p=3 #21
Hotels.com and Agoda does this too - but since they are selling not refunding they don't levy a fee.
But still better than taking cash - I've a mate who's taken cash refund in UK and left his card detail as deposit. Global Blue claimed he did not submit stamped docs in UK within the required 21 days and fined him gbp 40. His refund was only half that. He charged back (he photoed his stamped docs) but bank refused chargeback in the first instance, he's escalating the complaint.
When buying in EU I tend to think the refund is a contingent asset I may or may not get and discount the refund accordingly. Ah I better copy this post to my wife - we're there in a fortnight.