Well I would like to know how I am able to pay. Maybe in the US everyone assumes that credit card is an option, but as I come from germany, I would like to be able to pay via Paypal.
The thing is, there are different options to pay with paypal, as I am able to use it with debit payment, and in order to be able to accept that on your part, you need certain things. Sadly I can't help you there.
I had the exact same problem with sparrk.co. They tried to provide me with a Paypal payment link, but that didn't allow me to use it as they needed this debit payment thing.