@dronehawk:
I too am from Kenya, and attended my stage 1a and 1b in Hong Kong. I had previously applied to be assessed in Malaysia, as i was studying here then. But, decided to change my location, and got invited to HK.
Do try check for change of location, as CX does not fly into Nairobi, and doubt highly if they'll have interviews there. In Africa, I do know that they held interviews in Jo'burg, if my memory serves me correctly..
All the best!