Several comments here have mentioned that part of the evaluation process has to do with who has control over corporate spend. Is there any indication as to how Delta becomes aware of who has control over that spend? I have that control at my workplace but there is no corporate account. I either purchase group tickets (for 10-25 people per trip) or make the purchases for smaller groups direct through Delta (or other airlines). This year's spend has already been over $70k. I always either log into my account before making purchases for others, or I add my loyalty number to the group purchase in hope that they will see that. Any other tips?