I found that there were more users on my email address. In fact, I do not know who is the prodile with the playlists. However I deleted 2 profiles. Since I'm charged each month for Premium, it may be possible to find information about it somewhere.
On your Android
Connect your phone to a computer with a USB cable.
In your computer files, find and openAndroid>data>com.spotify.music>files>spotifycache>users.
All usernames you've logged into on this device will show under this folder.
Note: It’s not possible to browse folders with your Android phone without connecting to a computer, but there are apps available that enable you to do so.