I hear that starting in December 2025, Cathay will offer free WiFi in PE but you need a Cathay FFP number. I'm an AA EXP (OW Emerald) and I would like to accrue my miles on that program and use the Emerald benefits (i.e. lounge access), but also get the free WiFi. On SQ I can put in my UA or OZ FFP number for accural and my KrisFlyer number for "amenities" to get free WiFi. Is there something similar on CX?