Premium(It doesn't matter, really.)
Poland(Why does it matter?)
PC(I will spare you the details, i don't think that it does matter.)
To explain better what exactly i did - installed spotify normally from apt, did dist-upgrade to 20.04 from 19.10, removed spotify-client with apt, tried reinstalling spotify with apt.
Reinstallation fails with post-installation script returning 1 error. I believe that there is issue with adding "Spotify repository nondestructively"
If someone has same problem, sorry, spam filter on forum removed my post with detailed explanation, but I fixed my problem in /var/lib/dpkg/info/spotify-client.postinst