Can not mute on Android

My laptop works fine. I now need to use my phone. I have latest version of Zoom. I have a free account. Android phone. When I am in a meeting I see no mute on the page. If I swipe left a new page appears and says I am muted but I am NOT muted. How can I get this to work and mute myself? The meeting host can also NOT mute me. Please advise. Thank you.