Can someone please advise on passport checks in HKG? My agent booked my ticket without my middle name, and while CX offers name updates for free, they say my agent has the itinerary "locked" and they can't update it. My agent wants to charge me close to USD$50 to reissue the ticket with my middle name (what I think should be a free service). I'm nervous about the 1 hour connection I have in HKG being affected by their oversight.

How much would I be risking things by not paying to have the name changed ahead of time? I'm not familiar with how itineraries are "locked" but does anyone know if my ticket can be changed by the airline at checkin to include my middle name?