EXP with approx 30k 12 -month EQD

Booked on Aug 2, AA 912 SCL-MIA, Sept 16, on Y
Called EXP line, no C inventory available, put on waitlist.
On Aug 4, I got an EF alert of C inventory available at 9:32 AM Chile time (missed the alert, busy not checking emails)
Later that day, at 12:30 PM Chile time, I got an email from AA with the rebooked ticket, upgraded into J.