Is someone using my app without permission?

I am seeing multiple shows being recorded and watched on the stream app. These shows do not show up on my DVR. I’ve also had purchases show up on the stream app that I did not make. I chatted with customer care and they informed me that no purchases were made. So that leads me to think something is wrong with the app, where it’s blending multiple accounts together. My stream app no longer shows my recordings. There needs to be a way to see what devices are linked to your stream, not just the one streaming now. I’ve also checked the users, it shows just my wife and I and NO we haven’t given out our username or passwords.