Banks

Trying to figure out why my bank at home would tell me that I need a 5 digit pin number in UK and EU when I really only need my regular 4 digit pin. It amazes me that they don't know this. Didn't need this frustration but I have a few Euros now and a nice hotel booked and paid for tonight in Bordeaux but God knows if it will all work when I need to get more money. Oh well, I guess this is all part of the adventure, right? Wish me luck.