Hi, I'm trying to set up a premium account for a friend with an iphone, 2 Google homes and an Amazon echo. It works fine on the homes but the echo responds with 'your Spotify account does not support streaming on this device'. The correct premium account is linked in the Spotify app and the echo appears in devices. When you choose the echo from the app and click play. The echo speaks 'ask Alexa for a song or playlist', however doing this just repeats the phrase above.