wasn't this feature already given to silver, gold, and diamond members? I mean on top of the 24 hours hold. I remember once i hold a booking and because CX does not take Amex for payment from mainland china, they had to hold my booking for one more day (for reasons I still don't quite understand). When I raised this to MPO agent that I will miss the 24 hour deadline, she just said "due to your status, we can hold the booking longer at no extra cost"