Safety-Critical Device Failure and No Response from Matrix

I am extremely disappointed with the service I have received from Matrix. I have been attempting for weeks to resolve ongoing issues with my device, but there has been no assistance despite numerous phone calls and emails. Both the panic button and the emergency button are completely non‑functional — when pressed, there is no response at all. In addition, the device has a faulty battery, which is now draining my car battery. Despite repeatedly reporting these issues, Matrix has failed to respond or provide any support. This level of service is unacceptable.