Hi all -

I have what is probably a basic question, to those who have a better understanding of mileage earning for paid tickets than I do

I registered and qualified for an AA promo: Double miles on Premium Economy, Business and First tickets.
(Register by February 25, 2019, and before you travel; Earn $3,500 Elite Qualifying Dollars (EQDs) on Premium Economy, Business or First tickets and fly on qualifying flight; After earning the required EQDs, you’ll earn double award miles on those flights and any others through May 5, 2019).

I took two flights in April post registration, within the promo dates. Below are my miles earned, and I'm unclear why the second flight earned several thousand miles less than the first:

1. DCA->PHX 5937 EQM; $2317 EQD. 11,585 Base Miles; 21,405 Bonus Miles (listed as 11,585 and 9,820, both 'promo' EARN 3.5K EQDS FOR DBL MLS-P319B)
2. PHX->DCA 5937 EQM; $2270 EQD. 11,350 Base Miles; 11,350 Bonus Miles (same promo reference, but only a single one this time).

So I can see that my first flight earned 2 promo bonuses, and I'm wondering if the second should have as-well? Since I don't truly understand the situation I don't feel comfortable reaching out to AA at this time.

Any advice if my current earnings are correct, too high, or too low?

Thanks!