The Thrifty/TWA promotion involved the sending of Aviator Elite cards to Thrifty customers in the "Blue Chip" program, which is like National's "Emerald Club" and Hertz' "Number 1". It's basically a database which provides members with stored rental info for preprinted contracts. If you really want TWA Elite, just call them. The way they give it away, you can probably get your dog a card.