I received an automated email just now suggesting I pay with Crysta or Game cards. I was able to add Crysta via Amazon using the same card which SE is rejecting and I have been using elsewhere without a problem. They also suggested waiting 48 hours between attempts which I will be doing starting now. Also, here are some other references of people with the exact same issue that started somewhere late in December.

https://www.reddit.com/r/ffxiv/comme...mation_and_it/

https://www.reddit.com/r/ffxiv/comme...t_resubscribe/

https://www.reddit.com/r/ffxiv/comme...n_sub_renewal/