[gee6]

It is probably not the programming.

Do the doors lock/unlock from the interior buttons?
Do the doors lock from the FOB?
(You say all other buttons work - definitely?)
Do the doors lock/unlock by the key? (Try that with at least a window open )

 

[gee6]

Otherwise I would have told you the problem was probably with the ICM relay module - which has separate relays for lock/unlock.

 

[gee6]

And this 'specialist' can't program his own remote? Kia dealers are not supposed to go outside for things like this. They have to buy the specialist gear to be called a dealer. I wonder if this guy thinks it's the same as programming a pre-facelift (which it isn't). Pretty much anyone can do a pre-facelift fob. Kia deliberately made it a dealer only function post-facelift.