Hi,
I'm so sorry for the mixup. I think I left off the last letter of the key. If you add an A to the end of the code I sent you, it should work. I also sent you a friend request on steam. I can repaste the hole key there if you are still having trouble.
Thanks for holding off on the negative review. If there are any issues in the future, definitely message me on steam. I don't usually check the forums...lol