Poor service

I recently traded in my vehicle for a new one. When I added the new vehicle Miway insisted that a guaranteed tracking device be added to the vehicle to benefit from 0% exxess and to have a reduced instalment. I called cartrack to install a tracking device. Few weeks later Miway sends me a cession letter that gives them the right to claim a R150 000 that cartrack will pay out incase the vehicle gets ****** and not recovered. I sign this letter and send Miway my tracker installation certificate. Upon receipt, Miway notifies me that I have the wrong tracking unit installed. They advise me that I need to install a "guaranteed tracking device, cartrack fleet management unit". I called cartrack, ask them to upgrade the unit and get told that my monthly instalment will increase and that I need to pay a reinstall fee. Fast forward - I send Miway my new installation certificate only to be told, "sorry sir, you are on Miwheels LITE and therefore do not qualify for the 0% exxess on theft and reduced instalments as said in the cession letter". Like seriously? Why did you make me go through the whole process to fit an upgraded tracking unit which I had to additionaly pay for??? I am sorry but you just lost 2 vehicles worth of insurance premiums because I canceled and believe me, it will take A LOT of effort to regain my business.