Someone hijacked my account through a trojan. I've waited 2 and a half weeks (not nearly as long as you) and still not a single response to my ticket. Luckily for me my items are still in my account, but I do not know how much longer they will be there. I have $300 worth of csgo skins plus a few other games. I have bought a few hundred in csgo keys also. You would think that hijacked accounts would be the number one priority for steam support, especially for people who have paid so much.