Originally Posted by
cockpitvisit
The problem is, for all practical purposes the credit card number IS your FF number and will become invalid too. Internally, LH keeps your original 15-digit M&M number, but the PNR contains the 16-digit CC number as FF information. Not sure if the check-in machine is smart enough to find out the new number automatically.
They are. I can use every CC I have registerd in my profile for the CI machine