@GooglePlayMusic hi after a week of waiting (some Google Support emails later) i try now Twitter. My Play Music Account has too many Devices. Some are 5x in the list. But i cant delete them. No one could helps me to delete or reset my Google Play Music device list to zero. Help
Sorry to hear that you've been waiting for some time now – from the Play Music app on your mobile phone, tap on Menu ☰ > Settings > Manage your devices. Then, choose the device you wish to remove. You can also contact our support team for help here: http://yt.be/help/i16t