This is used to verify the bank card details entered by the customer in Froda's loan application flow. The list should contain the full set of valid card numbers since the existing ones will be replaced. So for example, if a customer has 2 valid cards with card numbers 1234 and 3456 since before and the partner sends an updated list containing only 3456 later on, the card 1234 will be removed in our system and no longer be considered a valid card number if the user inputs this number in our loan application flow.