Muse Hub purchase and payment issue

My credit card is shown as an approved method (the account number has been stored on your website) but when I attempt to purchase a product, a window popup that says I must add a payment method to purchase. This appears to be the same issue that was fixed a month ago?  I am in the U.S. How long will it be before I can actually purchase a product? I hopefully won't need to keep checking back to try to purchase something. Thank you.