My google skills have entirely failed to turn up anything on this, but the last two games I got from GoG each resulted in two debits on my account, one for the actual list price of the game, and another right after it for a "network service charge". The extra charge was apparently 2 cents per game, so I'm not really up in arms about it, but it seems really mysterious to me: nowhere can I find a mention that this was going to be charged, nor have charges like that shown up from previous GoG purchases.
Anyway, has anyone else seen this or heard anything about it? Mostly I'm just curious, with a small side of wondering if someone's running some kind of sophisticated penny-skimming scam