After 1-2 hours of searching and account tweaking I finally discovered that you can have two accounts on the same email. Is this true? Confusing. Playlists found on this other account. Can't find a delete message button. Tried to edit/erase the text, but a message "an unexpected message has occured" appeared. Thank you anyway.
Edit: Suddenly I could edit without error. Erased half the message, so you don't have to read so much.