Cartrack cannot deliver

Two of our company vehicles have been ****** within 3 days. We had to inform Cartrack of the incidents when the drivers discover it. Cartrack did not pick up that the units have been disconnected. After I reported it, their response: We cannot locate the vehicle! This is what they promise on their website: "With an array of intelligent alerts such as battery disconnects, strip warnings, ignition warnings and more, our 24/7 control room is always on guard to contact you about any suspicious behaviour on your vehicle – even when no driver is in the vehicle." What a joke!