We don't provide any reporting for the following reasons:
1) Spotify For Artists’ reporting in their dashboard is extremely transparent, detailed, and free. Part of how we keep our costs accessible to our clientele by not charging for any “overlapping” services. We don't want to charge people for something they can already get for free.
2) Many times, a song is growing for reasons outside of our promotion during the time of promotion. Maybe the artist is touring, or the song got added to an editorial playlist, or the artist had a viral social media post, etc. Not providing reporting eliminates the possibility of unintentionally falsely claiming credit for the growth of a song.