This is the reply I have received from Supporter Services following my email earlier today:
"Away ticketing has changed slightly, we now go on sale to supporters earlier to allow us to get a better understanding of the volume of supporters wanting to book for this game which in turns allows us...
At least you have Row T, we appear to have been allocated Row D, with my seat showing as 5 - so I can probably touch the corner flag! Not the best seat to be allocated for people in tier 1....