Bad way to post an OP post, by just a link. Basically, if your bank sees unexpected oversees spending on your bank card, then they may put a block on your card. Tell your bank you are going on holiday, if you intend to use your card for withdrawals. NEVER use your credit card in an ATM, the interest is horrible. Even using a normal bank card draws excessive transfer and interest rates on it, best to use travellers cheques and cash.
Moneysavingexpert.com is a good site to browse, but too far spread out, and I hate that Martin Lewis ? guy on TV, he just rambles on and on...