I, too, can attest that GoG's customer service support is rather slow, and often times unresponsive.
Right now, trying to get a refund for "Where Is My Heart?" game doesn't have any gamepad support (no gamepad support for a side-scrolling platformer? REALLY?) been 5 days since I contacted them, still no response.
This's something I noticed basically right away when I first opened the game, but this WAS NOT something mentioned on the game's product info page here on GoG.
Never would've purchased the game to begin with, if I knew I had to play it by keyboard.
Went looking on Steam's messageboards to prove that the developer didn't program any gamepad support into the PC release; even though they released the game on consoles about 3 years earlier.
Again, it's never mentioned on any of GoG's product pages whether a particular game is compatible with gamepads or not, and I'll usually have to consult an outside source, like Steam, Humble Bundle, or the developer's page for the game; relatively, a lot of tracking down information, when GoG could simply present that info themselves.
If you're a business, you shouldn't WANT your customers relying on information from your competitors to make a purchasing decision! Because then, otherwise, the customer is more likely to purchase from the business that gave them the information wanted about the product!
CONTRAST that with Humble Bundle, from whom I purchased 2 games that were incompatible with ANY gamepad without my foreknowledge, and they provided me with a refund the NEXT DAY! Again, could've listed that said games were incompatible with gamepads, but at least they refunded me, and quickly!
Simply put, Humble Bundle's customer support >>>>>>>>> (is much greater than) GoG's customer support.
MacArthur: Or you can skip that and give the game a bad note for the bugs and be done with it, dollars wasted and all. I've done the same with Transistor and Bastion which have known problems dealing with big screens, but the devs just don't care. Doesn't mean we should put all the blame and expense on GOG.
Oh geez, and I just picked those 2 games up earlier this week...