Vitality Drive penalises me for trips its own app fails to record

Since Discovery moved me to the new phone-linked Vitality Drive sensor, it records only some of my trips. The rest are marked "Uncovered", and I lose points and get extra distance added to my month, for driving I did perfectly normally.

The sensor shows "Linked, Not Connected" with a full battery. I have done every troubleshooting step Discovery suggests: Bluetooth, high-accuracy GPS, mobile data, all permissions, battery optimisation off, restarts. Nothing fixes it.

The old device worked on its own. Now my rewards depend on a phone sitting in the car running Discovery's app in the background, and when their software drops out, I carry the penalty.

I have asked Discovery to reverse the penalties and move me to the standalone *** device at no cost. Discovery, please sort this out properly, not with a copy-and-paste reply.