I accidentally failed to input the right info when trying to pay, like, 5 times? Bad memory.

And now when I'm sure of the info, it says "Your card was declined."

How long do I have to wait until the failed attempts are cleared or something? Or can I only use Paypal now?

Your card can only be declined at the bank or maybe payment processor level. Talk to your bank.

Well, whatever happened, it got resolved without me knowing about it. It works today. So woo!

It happened after I made a password, so maybe that was it?? Didn't try for the whole of today until now...