My understanding is that
any debit or credit card should work, if used in conjunction with a valid booking reference number.
It doesn't have to be the actual card which was used to purchase the ticket - that has already been debited for the cost, after all! However, it
does have to be an identifiable bank card, which is then registered against the details entered by the person collecting the ticket(s).
This is required, purely to provide an audit trail - just in case someone claims that their pre-paid ticket(s) have been purloined by some person or persons unknown, using a Clubcard!
