Homepos Mini starts playing ”wrong” account

I just bought a HomePod Mini and I assume I have set everything correctly to play Deezer with it. Now when I ask Siri to play Deezer, it respond that it starts playing Deezer from user name ”my wife’s name”. My wife doesn’t have any Apple product or even a Deezer account. She doesn’t even know what Deezer is. Our Wi-Fi network is ”nameless” so her name can’t come up from that. Using AirPlay on my IPhone to cast to HomePod works fine. 
But I would surely like to know why Siri on my Homepad is using a different account. Any ideas anyone…