Originally Posted by
toomanybooks
I don't understand how that could be the case, given this wording:
" An individual may not travel as both a Member and a Companion on the same flight, except in Customer of Size instances.."
This seems specifically to prevent a third person, while permitting the COS to be someone's Companion and his own as well.
Otherwise, the "except" part makes no sense to me.
The except is there because for a COS the Member and Companion must fly on the same flight. It is the only case where that is so. Thus, the exception.