I've reading about this in the amex 200 thread - you did have a bunch of helpful posts over there. I was asking here bec I wanted to know which flights it works for.
Btw I plan on doing the refund after the points post. Question is how long does it take for charge to post? Actually the real question is if the spend amount needs to be posted or if its pending its good enough to be counted towards threshold. . ?
Thanks, its nice to know people are benefiting from my idea.
I hear the questions with the spending thershold, I simply don't know.
What happened IME w DL was that although DL refunded the charge while it was still pending, the charge goes through, and there's also a refund. Tzivi Dinim. FWIU a refund triggers a clawback, but not (this part Dan confirmed) a cancellation klappei spending thershold.
The bonus should post right awa (I'm pretty sure it requires the charge to post & pending doesn't count), though I wouldn't bet on 24hrs.
The most certain way to do this is to purchase a ticket which is refundable even after the grace period, wait the day or two it takes for the bonus to post, then cancel it.