Originally Posted by
CrazyInteg
and I wasn't asked at all.
So YMMV (not literally though, you'll still get all the miles you fly

)
Actually my last PG flight hasn't credited after 7 days so YMMV indeed!!
I go through bits and spurts where PG/TG will ask for my cc when I check in for the first segment of an itin and then a handful of itins where they don't ask. There's really no rhyme or reason to it.