Ok! It's working NP now. Bitcoin and Credit/Debit.
Yo nostr:npub10qdp2fc9ta6vraczxrcs8prqnv69fru2k6s2dj48gqjcylulmtjsg9arpj !
Having trouble trying to purchase some credit to use shakespeare.

Same issue when trying with Bitcoin.
Discussion
Just to make sure this is followed up - it looks like the purchase functions were temporarily blocked while the NSP (Nostr Service Provider) was recognized as offline. This behavior is expected, but the UX could likely be improved here.