Camera NOT recording motion nor alerting

I have two cameras that do not record motion or alert me. What can be done to fix this problem? I have tried reconnecting, switching off and back on, and resetting, but nothing is working. I spend a lot of money on this camera every month. I do not feel safe because of the malfunction of these cameras. I feel like I need to be refunded my money and monthly fees from them. Is anyone else experiencing this? Is there a class action lawsuit in place? I need help here please...