This may or may not be the right place to post this but since I am a UA 1K and recently booked an on-line flight with TG with my Mileage+ number, for travel within Thailand, I thought it was interesting that I could check-in on-line but could not print out boarding pass. There was a notice in red reading that boarding pass would be issued at check-in desk. No problem there, but was asked to see the credit card which I used to pay for the flight. I know there has been discussion regarding airlines asking to see credit card. This was the first time for me, I thought if any airline would ask it would be one of the LCC's.