Why have you taken a £1 charge?
You may occasionally notice that we have authorised a £1 charge on your account before actually taking the total amount for your order.
This is a pre authorisation code which cab be explained by the below:
Pre-authorisation (pre-auth) is a banking term denoting a practice wherein money is not taken from the payee's account at the moment the transaction is made. The amount charged is instead made unavailable on that customers’ account – known as an authorisation hold.