Pathetic Service from Netstar

With our annual price increase from Netstar which was no sooner given than it was activated, we put a call in to Netstar to check the unit's functionality. They couldn't verify the functionality at the time that the car was being driven, but assured us that we would receive an SMS within 5 days. Despite a reminder call to the customer service yesterday and a promise to revert, we are still unsure if our vehicle's unit is working leaving us vulnerable for any insurance claims.