After buying premium and using it on my laptop, there is no more audio on iPhone!

[scottie4AD]

Here are the facts:

I used free Spotify on my iPhone for several weeks. 

Decided to purchase premium because I liked it. 

Using my laptop (not iPhone) I made the purchase through the Spotify website.

Downloaded the app or whatever onto my laptop. 

Enjoyed it on my laptop for a while. 

Logged out of my account on the laptop, then went to the gym and was going to use iPhone as always. 

No audio. At all. I can see a song playing, but can't hear a thing. My iPhone even says "You are listening to Spotify on this devide". But I'm not listening, because I can't hear anything. 

**bleep** is going on?