I've updated the k2 plugin, but it's in the 4.0 branch -> and this one is still in alpha.
That is why you'll have to use the attached file and do some work to upload the things as described:
Please download the attached zip file and unzip it on your pc.
Then upload the hotspots.php and hotspots.xml files to your site in
/plugins/k2/hotspots folder
the plg_k2_hotspots folder should go in the /media folder on your server.
Once you have this -> open the k2 - hotspot plugin in the backend.
You can provide a category mapping -> using this option you can map the k2 categories to the hotspot categories.
Save the config. Now when you go to your k2 item we no longer use the address field. Beneath the item you should see a google map + fields for street, city, zip and country. As well as lat & lng fields.
If you click on the map you can place your location. And you'll have to manually enter the address. This way you are able to add any address you want and we don't deal with the google geocoder anymore...
Let me know if it now works as expected or if I need to change something more.
Regards,
Daniel