Originally Posted by CO Insider
Hi RobOnLI, There is no logic I'm aware of within online check-in that would ever cause us to remove a frequent flyer number. If you'd like to send me a PM with your confirmation number, I'd be happy to research and see exactly what happened.
This often happens with reward tickets. You book multiple seats using the plat's FF number, take the miles out of that account, and then that's the only FF number that doesn't appear on the record. I wonder if that's why the concierge on our recent EWR-LHR didn't come and greet us on board?