Using the benefits for one FFP while crediting to another...worth the hassle?

[demue]

Just in general throwing in another one here. I fly mostly SQ, TG and every now and then OZ, NH or the odd TK or LH. With some carriers and at some outstations I still run into challenges getting my A3 number into the system and onto my BP even after guiding the check in staff.

In several of these cases I just gave up and told them not to enter any FFP# and I will retro claim later. I was still able to access the lounge (used my LH SEN or A3 *G) in each case. Maybe luck or more relaxed rules in SE Asia, but it would put one into a difficult situation if the exact *G has to show on the BP. Not realistic in my view as they can't ensure this always works properly.

[IMH]

Originally Posted by intuition

quite a few threads around regarding points getting credited to "the wrong" program. [...] Even people with A3# printed on a newly produced BP still get miles credited to M&M.

Originally Posted by h15t0r1an

I can attest to the "stickiness" of Miles&More FF number, if you ever add it to your booking.

+2: see for example this thread.

Don't add a M&M number to a booking that you don't want to credit to M&M. Don't allow Expedia or any other travel agent to do it on your behalf. Don't look up your booking whilst logged in to a LH or M&M website. Don't show your M&M card to a check-in or gate agent.

The one thing that you can safely do is allow your FTL or SEN card to be swiped to gain LH lounge access -- your BP will be scanned but the booking will not be altered.