it's easy enough to do yourself, but an agent also works to do the paper work for you.. You still have to go to the transport department yourself... Don't fall for the scammers on FB adverts who say you don't.... You do 👍
it will not work... Biometrics, and governments now put new passport info on an international data base.. Ie his new passport would come up as "formally know as" AKA along with old passport details in old name 👍
he will not find it.. There is no domestic terminal at Suv... You "turn left" entering the check in area and head towards the domestic end of the terminal