Bests & Worsts Reviews from Amazon

I bought the two camera system, and one camera is working fine. The other camera intermittently posts unplayable videos and drains down the batteries. I have had to replace the batteries twice in two months in the defective camera. I have contacted customer service about the issue, but they refuse to believe it is an issue with the camera and instead tell me to reinstall the app. Why would the app cause only one camera to have issues? I've been going back and forth for several days with customer service and it's getting quite ridiculous. I already have a Ring doorbell and should have bought the Ring Stick Up Cam. The $3/mo fee would be worth it to actually have a working system.