I just got my tickets after about 20 invalid requests. On this one I changed from their recommended delivery to Regular mail. I don't know if that is what made a difference, or if it was just luck (and perseverance :-).
I did get an e-mail right away, so if you didn't get an e-mail, likely you didn't get tickets.
PS: What is Section GA1? Is it the section GA or A1 on the seating chart?