Slightly off topic. On my last visit I stupidly asked my partner to pop down to the Exchange shop and buy Euro's. I omitted to tell her to get them in small denominations. She came back with 1x500. 4x100 and 2x50. The 100s and 50 where no problem but trying to change the 500 was difficult. Refused in
Supermarkets and even the Banks. Finally changed in the Post Office but only after some scrutiny.
Thats why counterfeiters print 50s I suppose.