Sorry, well I just reeived some money today, but am still not in the position yet to open a prepaid-creditcard. But to be honest, IF I had a prepaidcreditcard, I would use it directly and not involve PayPal in addition. OK, using PayPal would grant me, that my PPC-card data would be safe - but if in any transactions might get something wrong, I might have troubles, to find out, where the problem lies. I am sure you know that stuff: GOG would tell first, it's mistake of PayPal vice versa, PayPal would first assume, that the problem may be originated by GOG. This kind of situation always need an additional effort, before you really can begin to clear and to solve anything.
ANOTHER point: I just asked GOG yesterday concerning paysafecard, and they answered my question to that, that GOG is thinking over the possibilities of adding new paymentchannels, but is not intending in the near future, to implement paysafecard as option for payment. Well I guess, I'd find a way to establish a prepaidcard BEFORE they will establish psc. By the way, it will be all simplier with a ppc then, because this works everywhere and I really had the possibility to rule other problems of daily payments by ppc. So I decide, it's worth another try now.
In the meantime, however, it would perhaps also be a solution, if one could send psc-moneys to owners of ppc or cc owners which they could use for doing orders with GOG in favour of the one, which sent them the money? Hope I am expressing understandable, as English is not my mothertongue, I am sometimes a little bit challenged, outlining this kind of business-transactions-stuff.
Finally, I'll also have to give out one great thank to JMich, because his explications really help understand, why psc is not quite favorized as payment-method.