And of course, we don't know the timing from when the ticket was purchased and the flight taken place. If it is rather short period, the actual credit card victim may not notice the charges until next billing cycle to call in.
IMHO, the story still didn't really line up.
She bought 3 tickets and flew on them all the same way from the same source over a year and a half. Then, AC came after her.
Damn straight, the story doesn't line up.