A Which? survey found that a Halifax debit card customer will pay £6.67 for a £5 bottle of wine in a French supermarket.

Fees for using a debit card overseas are "exorbitant" and complicated, according to a report from consumer watchdog Which?

Some banks and building societies are charging a third more than others for foreign transactions, based on the same Eu5.95 debit card purchase and Eu20 cash withdrawal. The watchdog found that Norwich & Peterborough's Gold Light current account came out on top, since customers are not charged any fees for overseas use. Halifax charged 33pc more than N&P – with the purchaser spending £6.67 on a £5.03 bottle of wine in a French supermarket. Using the N&P card, the purchase cost £5.03.

The watchdog also tested the cards by withdrawing Eu20 from a BNP Paribas cash machine in France in December. Lloyds TSB customers ended up paying £19.43 for £16.92 of cash, whereas N&P customers paid £16.92. NatWest was also expensive, with the supermarket purchase costing £6.42 and the cash withdrawal totalling £19.39.....Read more here--: Banks under fire for 'exorbitant' overseas card fees - Telegraph