Land Rover factory fitted tracker. Netstar not helping

I bought a Land Rover, which in SA comes standard with a factory fitted Netstar Tracker installed. You pretty much have no choice. I want to active it and I’ve called the sales center more than 5 times of 3 days and no one calls me back. I have been waiting since. Horrible service I’m not sure how Land Rover will think of this and advise you call this supplier to task because they are putting a bad name on your brand