Just letting you know that everything's fine now. There's been some minor problem because you were actually quicker than expected, but it's all solved now. ♦
I contacted the support and referred them to this thread, but I didn't get a reply until the next day. I was told by a certain Maria that it wouldn't be a problem, and my profile was reset to the point where I was able to pick a portal again. I signed up to PartyPoker and did all that was expected, and told Maria about it in the reply ticket.
But 15 minutes later, I received an e-mail from FullTilt where they thanked me for the 50 dollar deposit on my account! I logged in immediately, and indeed, there they were in my cashier, within less than 24 hours after signing up here and passing the quiz.
I knew I wasn't supposed to have this money, so I contacted Maria again to tell her about the situation and asked where to transfer the money to. It took another day for the reply (so earlier this afternoon), but she told me the account and the transfer was approved immediately. I let her know that I got the confirmation on my side that the money had been transfered, and this time it only took an hour to receive the next ticket in which I was asked for my PP account name.
For some reason, it didn't show up on my profile here, but after sending my latest ticket (as of now), it finally appeared, and about two hours ago I received another e-mail where I was told that 0.01 USD had been transfered to my PartyAccount, unfortunately a bit too late as I missed the sign up for a freeroll for my area. 
Now I'm happy to see that my current balance is exactly $50.01 USD, so 1 cent more than expected. I guess that's my gift for being honest. ♦
So thanks again to Maria, Puschkin81 and PokerStrategy. I'll try my best to make sure it was a good investment, and it will end up in a win-win situation for everybody. If that 73rd place in a 1500 player freeroll tournament yesterday morning is any indication, it shouldn't take too long before I have my first million. 
♦
Well, there's another freeroll tournament starting in about an hour, so I better get ready for it mentally already by reading through the Strategy articles. ♦ Wish me luck!
[EDIT]: Well, I finished 133rd out of 1566. Not too bad I guess, especially since my buddy only finished 714th. ♦
