iDeal payment method unavailable

I'm trying to upgrade my 15$ tier from the kickstarter to the 60$ tier on the store so I can try out the beta but they just don't want my money ? Anyway, I'm getting an error that the method isn't available:

If anyone knows what to do, please let me know . And yes, I've waited some time before I tried again.

Thanks in advance!

Try posting here:
https://forums.uberent.com/threads/new-payment-provider.52362/

Thanks for the info!