Spotify in Croatia

I am from Croatia and I was able to install and use (run) Spotify *free* version (not Premium, I didn't sign up for free Premium or anything). None of my friends can install (or run) it because in order to use Spotify in Croatia, you would need to have either an Unlimited or Premium subscription. Now, a week after using it, I get this error message after trying to log in: > You appear to be trying to log into Spotify from a different country. So obviously, the first time I downloaded Spotify, the Play Store thought I was in a different country. I was not using VPN or anything like that, so how can it be? Another thing that interests me, can I trick the Play Store or other apps to think I'm in another country by changing my settings somehow? P.S. I get promo messages from Spotify in Swedish language!