I tried adding the card both on your page and through settings, I tried doing it on 3 separate days and on 2 different browsers, I tried doing it on subscribestar.com too, and I tried both my country and US as the country. From checking on reddit, it seems many are having same issues, and they don’t seem to be too happy with subscribestars support. Guess I’ll just wait for 2 years :P. Keep up the good work o7