Here is my experience on the MTN/Garmap issue whereby subscribers are informed of the suspension of the service.
When I got my 3 new 9700's, I tried *123*18#, message came back saying navigation service is suspended. Called MTN customer care (data services) and requested the service on both units, as I essentially paid for them, right? A few days later (and with the help of the friendly guys at Garmap) it is installed on both our Berries and it is really a fantastic navigation solution, superior to anything else I have seen before on a mobile device.
Call 1555, insist on activating your number. They need to send Garmap a message whereby MTN informs Garmap that your number does qualify for the navigation offer. MTN is a large firm, it takes a couple of days and a few calls but it will eventually happen. If you call 1555 try and speak to Sebe, she has helped to get me through the process and she was also assisted by the Garmap team.
Hope this helps someone.