Originally Posted by
vintagepilot
Incidentally, I discovered another previously unencountered 'glitch' trying dummy bookings on AA (UK and US) in that if I entered my BAEC number during booking it came up with an error. The only way I could get it to work was to book without any FF number and add it later. Not seen that problem before.
Yes, I saw that too over the weekend while booking LAS - PHX - LAX - SMF in I class for $197 and the workaround was exactly as you describe: don't enter any FF number during the booking process but add it later, once it's been ticketed.