I recently re-bought the game and added a new key to my old account (I refunded the game on this account last time I played). I keep getting an error saying my account is being processed due to a refund request. w0t.
Once an account is refunded, it can never be used again. Your old account is gone. This should have been made clear to you when you asked for a refund.
You will need to contact support and explain what you did and see if they can unlink your new serial from your old account so you can create a new account.
