According to GDPR this is clearly illegal. I am pretty sure their subscriber contracts don't contain consent for sharing your location to any caller.
Now UK has left the EU so GDPR does no longer apply. But it is my understanding they have not changed any fundamental principles in whatever applies now?
Yes, it still exists. Most (all?) EU legislation that ended had to be explicitly revoked, since the UK was fairly diligent in transposing it to national legislation.
Now UK has left the EU so GDPR does no longer apply. But it is my understanding they have not changed any fundamental principles in whatever applies now?