I feel for all of you guys. I was in the same situation. Multiple credit cards, PayPal, Ultimate Game Card, in America, or in Japan (where I'm currently living), nothing seemed to work. Luckily, I was able to send a furikomi (wire transfer) for Crysta to PayByCash-Japan through a 7-11 last night. Sent an email this morning and they had Crysta in my account by the end of the day. At least while I'm in Japan, I've found my way of paying the subscription. Still though this is me going around SE's bs payment system. They need to get this fixed.

If anyone is living in Japan and facing this error 601 problem, try the furikomi route.

Good luck guys.