Wanted to let fellow fans, trying for GA's, know to persevere with it all.
At 10:00 GA tickets were showing as not available.
After twenty minutes of continually closing the black "no tickets available" window that pops up (NOT reloading the whole page) and retrying GA selection, tickets suddenly popped up.
As per JT tour they may be releasing GA's in bunches throughout the day.
I hope everyone gets the tickets they're after..