Indoor cam stopped working which worked before

My Indoor cam speaker stopped working. I can hear audio but no sound comes out of the camera. This previously worked fine.I have powered down the camera, holding the power button to reset, deleting and reinstalling the app. Still no audio from the camera speaker. The Wi-Fi connection is fine. I have enabled the microphone in the settings and allowed Ring to use the mic. I have turned off the blue tooth. What should I do? What phone number should I call? Thanks!