Not tracking vehicle

I have now for the second time had to call Netstar at my own expense (and they keep you holding). The system is not tracking my vehicles. I pay the extra money so I can track them with the App or online. Guess what it is not updating. This is unacceptable. They can only get back to me tomorrow. What happens if we need to track the vehicles tonight. I will sue the pants off them for breach of contract as they are supposed to track my vehicles at all times, not look for excuses all the time.