If necessary reset the Playbar and then ad it to your system using the Sonos app.

Just choose another room name for the new speakers.

The name is just an identifying label for the speaker set at each location so names like Fred and Ginger are just as good as Lounge and Den (though not necessarily as easy to remember their physical location). 

Thanks for your help will try and reset playbar 

If this is a previously owned PLAYBAR, it’s important that you Factory Reset PLAYBAR before connecting it to your network.