How do I unflag an invalid credit card which has been updated?
I am wondering how to 'unflag' a card. For example, when a card is flagged as invalid, usually the guest will contact us to update however we still receive reminders from booking.com saying 'Invalid Credit Card Status' for that guest. Changing the payment status in the guest screen doesn't help.
Is there something I should be doing to effectively 'unflag' cards once they have been updated?