I showed a friend spotify on their Alexa account and signed into my spotify for them over dinner one night. Now, all of their Amazon Echos show up in my "listen on" selection. I removed the Amazon Alexa app from my "Apps" list in the web portal, reset my password, and opted to sign out of all devices. I cant seem to get those echos off my account. I have debated starting a new account, but I really want to retain my discovery and playlists.