Paid Supporter with PayByCash gateway. Used Yandex.Money, press return to Merchant on PayByCash. Received:
I.O.U. One (1) Error Page
A useful error page should go here eventually. Until then, we suggest you hit back in your browser and try again, and if the problem continues, let us know in the bugs forum.
Supporter is not shown as paid. Hope you will pick up the payment later with your robot
BTW - why all payment providers demand to enter so much information? Paying supporter for you is a veeeeeery painful process. PalPay did not manage to do it with any of my cards...