Same here; I've asked them if they have any other options, and failing that, I'll just use the check-by-mail feature of my bank.

Sites that do this universally bounce me. If somebody wants to give you money, the worst thing you can do is get in their way.

I went through JustGive and go to the point where I had to set up an account to donate. I'm at work, I have about 2 minutes to slip a donation through. I quit, I may donate again at home tonight if I remember.