See here for a posting with, among other things, a link that will lead you to Now Live Chat, where you can see if Now can rescue the situation for you.
It also mentions the Payment PIN, something which if set before would have prevented the issue; but at least if you set it now, it will prevent a recurrence. Search ‘Payment PIN’ in the Now Help for instructions on how to set it up.
Line 3. Overhead, without any fuss, the stars were going out…..