Hey,

I recently removed half to 70% of my offline songs on Spotify to reduce space used by Spotify however it only removed 200-400MB of usage. This makes little to no sense, as an iOS developer myself I would check how you handle selecting file sizes and removal of files (as I changed my settings for half of my music so the files I deselected for offline was a mixture of sizes) as a first check as it tends to be one user story that is commonly overlooked. But I just thought I'd report it. I attached an image of how much space it's taking to show that half my music is more than half a GB.