Open your cell phone, see the ICASA sticker on it?
Now, goto the ICASA website, and get the contact numbers and make contact.
Please note that ICASA has absolutely no interest in allowing you to import these devices, only the selected few have that privilege. And they gained that privilege through paying massive license fee's and, of course, the fluffing of certain individuals pockets.
These select few will of course jump up and down and demand retribution if you are allowed to compete with them.
Are you speaking from experience davemc or have you run into dead ends youself?