Unit fitted not working

On 5 November an early warning system was removed from our 3 series BMW and installed into a new X3 BMW at Hatfield Sound & Security. We tested the unit on 17 January 2015 only to be informed that the new X3 is not registered on the Netstar network. On that day we made 5 calls updating our info and that of the vehicle and each time when we test the unit it falls as the details is not updated on the system. We were requested to contact the fitment centre which we did. They were also not very helpful and after several calls were informed that it is an IT error at Netstar and we should speak to Sohail from Netstar IT. On Friday 6 February 2015 I again called the Netstar call centre and ended up with Sevene. I committed to resolve the issue and get back to us on Monday 9 February. We again have not received any feedback. We sit with a vehicle that is not covered with a tracking system and we have been paying every month for a service we do not get.