No UK maps on second hand Fenix 5 Plus

I just got a second hand fenix 5 plus from eBay. Everything seems ok, apart from the map isn't showing my location.

Within Garmin Express I see this

However if I goto Map settings the configure maps on the device I just see:

Worldwide DEM Basemap, NR

TopoActive Americas North

TopoActive Americas Central

Can anyone tell me how I get the UK map onto the actual device?

Thanks!

Greg