Not letting me buy ZP. The page after selecting my payment method doesnt load. Never had this problem.
How to buy ZP?
Have you tried again recently? It may of been the payment provider.
Have you tried other payment methods? perhaps it could be an ad-blocker or a browser extension that is not letting you get onto the page. Might be worth temporarily disabling your ad-blocker if you are using one and then trying again. The payment provider could also be down for the time being.
If still nothing you could maybe drop support a ticket regarding this issue.