"The lady who answered my call..."
is well aware of how desperate they are to get FA's as the bottom of the barrel has already been scraped and OASIS are now paying more than CX. Net result, the SSP foot draggin specials that they were employing aren't interested any more.
If you have right of abode in Hong Kong and really want to live there why not apply to OASIS? Bear in mind you get no housing benefits from either as you are employed on local conditions if taking a Hong Kong base.