mmm ... Girls ranked below Mel in the entry list are seeded in the main draw; similarly, girls ranked below Anna are seeded in qualies. Presumably, then, both girls withdrew? Jade definitely did withdraw, though, last Friday.
I think Anna and Ana will be able to do a remote sign-in for the Las Vegas qualies as the final is tomorrow and Las Vegas qualies start on Sunday. However according to the ITF site they are only alternates anyway