Add PREY to mac Location services

The location of my Mac is not showing in Prey. Connected to wi-fi. Catalina.
How to I add prey to location services?
System preferences > privacy > location services
It is not in the list but there is:
“System services”:
Allow System services to determine your location:
Time zone + Find my Mac + wi-fi networking are ticked.

I have gone though all similar posts not no luck.
Your help would me greatly appreciated : - )

I have just downloaded le latest Prey app and installed it
Giving all the right permissions:
Access to: location, camera, screen record…
Prey is now present in “location services”
And it works. : - )