Unexpected foreign transaction fee on Apple Account

This is a user to user only forum not Apple Support. We don't know you, your payment method or your account at all. If you think your debit card was used for a purchase you didn't make contact your bank and dispute the charge.

Too little information. I don't know what currency AED is, the context of this purchase, not do I know where you are in relation to where the purchase was made.

In the USA it is typical for an additional % charge to be added to any foreign transaction. In other words, if I buy something from a vendor in England and use my USA credit card, the card will charge me a foreign transaction fee.