Apparently, there was a warning that another fee may be required for processing on the certificate. The $50 was the total and not per person.
They don't have any other information than the information they could get off of any of my bank checks. The first registration fee was paid by check and not credit card.
Thanks Snoozeman. If it all works out, we get a cruise. If we get burned, lesson learned. Either way I have something to write about to help others in this same boat. (..or is that a ship.)