Korean Air / Skypass
Korean Air is still antiquated when it comes to transferring miles. It does not allow for free transfer of miles, even if the traveller is not the one paying for the flight. In addition, the only time that miles are transferrable is if a family member transfers the full amount needed for an award flight--but even to do that government issued proof of relation is required (family registers are easily available in Korea but not so elsewhere). Seems like Korean Air would rather save giving out a few miles than reward customer loyalty.