It has happened to me a couple of times too, but that was a long time ago (during some heavy GOG sales years ago).

I didn't have to provide any proof of purchase, I just notified GOG support that I was charged but didn't receive the game, and they fixed it (added the games to my account).

I was hoping though this problem had been fixed, but apparently not. Anyways, I haven't faced this problem for a long time, even though I've kept buying many many games. Apparently it can still occasionally happen.

The best advice is that if the purchase process seems to hang and you don't receive the game, DON'T try to rebuy the game again until you've made sure nothing is charged from you. Otherwise you might end up paying twice for the same game. If you are charged, then notify support, and they will add the game to your account.

10$ temporarly locked.. scarred for life!

Once burned, twice as shy

They fixed my issue overnight great support

Well, half of you were somewhat helpful (in that you reiterated what Ninonocae told me IRL), and the rest just came in to white knight for GOG and/or criticize me. Yes, for some of us $10 is a big deal. I mentioned how my credit union wouldn't do business with GOG because this is exactlty what they thought would happen. Apparently their reputation precedes them. No word on my ticket. Apparently it's not worth the mods' time, either.

They've been getting a large number of new accounts lately, so that's why they're slower than usual. As was mentioned earlier, refresh the page, and if that doesn't work, send a PM to one of the blues .

Um, no.

Your credit union refused the transaction because GOG.com is registered in Cyprus. Cyprus is a tax haven and as such also associated with tax fraud, causing some US banks to put a red flag on any money transfers to Cyprus regardless of the legitimacy of the business. GOG's supposed reputation has nothing to do with it.

It's as simple as "If 'money to Cyprus' go to 'Nope'".

Btw, it's not very good that Gog is registered in a tax haven :\

That was just a little sarcasm for your absurd reaction to a problem that happens everywhere, every now and then.
Others already helped you, so no harm was done.
Don't feel like a victim attacked by evil fanboys now -_-

Nobody is whiteknighting for GOG. We're forum regulars, and most of us are pretty critical of GOG at times. GOG may have a series of serious problems, but my experience is that support is well-intentioned and reliable. And so that's what I (and others) told you to expect.

Nobody criticized you. I can see that your situation is irksome. If I didn't know what to expect from GOG support, I might be annoyed, too. But I wouldn't blow off a thread full of helpful people because their experiences didn't match my own unfounded suspicions.

If you can be patient, you'll be satisfied. Good luck.

I paid for games and did not get them however they fixed the issue overnight. Great support.

I disagree, I have never faced a similar problem in e.g. HumbleBundle (using Paypal there) or Steam (ie. you were charged even though the purchase failed).

I couldn't care less about GOG forum bugs and such (search and add friends don't work blaa blaa blaa), but the purchasing process and payment should be 100% trustworthy, always. If this is the same GOG payment problem that I have faced a couple of times a long time ago, it is VERY BAD, because it expects you to be vigilant and notice that you were charged even though the purchase process wasn't finalized correctly.

In my case, it meant I had to log in to my online banking service, and check whether there had been a money reservation for my credit card. During some sales where I might have bought several games from GOG during the same day on difference occasions, it might be hard to identify which money reservation exactly is that unsuccessful purchase attempt, especially if I had bought several games with the same price (individually). Very messy.

Frankly, it may be I have sometime in the past paid twice for some of my GOG games, because back then I didn't realize I was possibly charged even though I didn't get the game on the first attempt. So I tried to purchase it again, which succeeded. Meaning, I was probably charged twice, including the failed attempt. At least back then the extra charge was not automatically reimbursed, I had to notify GOG support about it, in case I noticed it myself.

This is why I always say that if your purchase process on GOG.com hangs or fails, don't try to buy the same game again, until you have made 100% sure you were not charged. If you were charged, notify GOG.com so that they add the game manually to your account.

Then again, I haven't faced this problem for a long time anymore, so I was hopeful it has been fixed. Apparently not, if some others are still reporting similar behavior.

I am unsure what exactly is causing this, and why it seems to happen only on GOG.com. It is as if charging is performed first, and there is a slight change that the purchase process fails even though the charging went through. From my (customer's) point of view, I'd naturally prefer the opposite: the charge would definitely not go through until the game is securely on my GOG account, and I have been sent the receipt to my email. But then I don't know if that would mean GOG might accidentally give free games to some, if the charging still fails even though you were already given the game. Not sure if it could be even exploited in order to get games from GOG without paying, with good timing and such.

Well, if you search on Google, you'll see that this happened to users on various platforms, Steam included.
On Gog I ecountered this issue 1 time so far.
I got the page stuck on loading, checked the library, didn't panic, contacted Gog, waited for the fix, end.
Surely it isn't ideal, expecially during promos, but there's no need to get worried.

gOg is just trying to save you from yourself. Terraria is an addictive, life-sucking game, and they want you to at least experience a few other titles before you lose all time to this thing.

Speaking of "a few other titles", be sure to check out the freebies that they give to all members: http://www.gog.com/games##sort=bestselling&price=free&page=1

Last, once they get it sorted out and you manage to break away from the time vampire that is Terraria, you might want to look into Paypal as a purchase option. It has worked like a champ for me.

Did you get it resolved eventually?