после трех месяцев раздумий над увещеваниями пользователей админы все таки ответили:
Unfortunately, after studying the providers of this kind of service and the various integration and cost issues associated with a debit card payment option, we are going to have to put this solution on hold. We definitely have registered the interest level shown in this thread and when we are able to offer something we will do so.
из чего приблизительно явствует, что дело, "к несчастью", отложено в долгий ящик...