I carry both my contactless debit/credit card and my Barclaycard in my wallet, which one will be debited if I tap my wallet on a reader?

It's always a good idea to take your contactless card out of your wallet to tap on the reader – this’ll make sure the right contactless card is debited. If more than one is placed on the reader, a red light will be shown on the reader to tell you the payment hasn’t been processed.

Find out more about contactless payments.