Join Date: Jan 2005
Location: New York, NY
Programs: UA, AA, DL, Hertz, Avis, National, Hyatt, Hilton, SPG, Marriott
Posts: 9,452
Pads of cards are supposed to be stocked in the "Inflight Customer Kit" and are controlled with serial numbers to prevent fraud/abuse. I haven't heard anything about them being discontinued, although the offers to customers are far less generous than they used to be, and generally insufficient for "major" issues.