Join Date: May 2004
Location: SIN (LEJ once a year)
Programs: SQ, LH, BA, IHG Diamond AMB, HH Gold, SLH Indulged, Accor Gold, Hyatt Discoverist
Posts: 8,813
I got something for 20 years a year ago as I enrolled in 2003 initially. I can't recall the specifics exactly, but it yielded some extra points as well. I think it was a 4x bonus for a stay in next 90 days or so similar to the 3x version reported by others for 15 years. Luckily it coincided with a stay at IC Strings and I got an extra 25k points or so from it. YMMV.