[jazzyjackson]

I think a 'purchase' ie a bank transfer like Zelle or even a paypal non-refundable 'gift' isn't likely to be blocked, it's just Visa and Mastercard that don't want to deal with offering fraud protection for vendors that see an extremely high number of chargebacks. So if you want to pay, pay by some method that doesn't offer money back in case of fraud.

I've also been prevented from sending money by e-check because my bank was concerned the form of payment was too suspicious, so I ETF'd money from another account instead. I don't think the law can force a 3rd party to facilitate a purchase.