Originally Posted by
peteropny
I'm not sure since the regular banked days can be applied beyond expiration, just need to book by, but if you cancel, the free day is lost. Try it for yourself and if the reservation confirms, you're all set. Just thought if something else which contradicts this, since 12F days are in the form of coupons, then they may not work after expiration.
Will try and report back, thanks. Makes sense that you can book with the free days, so makes sense you could use 12F cpns too.