@frank_533426363003051
I have other Reolink models, but they don't support Reolink cloud, I am concerned about the used E1 Pro's that I got.

I have had a mix of new, and used/refurbished Reolink Cameras, I was going to test out the the Reolink Cloud.

Out of the 4 E1 Pro Cameras, I bought 3 through Reolink Ebay's account, I bought 1 through someone else since Reolink ran out.

Now that I am trying to use Reolink cloud, I noticed that only 1 Camera was able to be bound, I can't find anything wrong with them, but on the Support page, it does say that the problem could be with Repeat binding, Cameras that are bound to another Reolink account.

I have only had these cameras for a couple of months, I am now concerned that these cameras have been uploading my security videos to someone else's Reolink account without my knowledge, and approval.

The Cameras had all been Factory Reset when I received them, and I did a Factory Reset when I got them, there is no forwarded ports from the Internet, but they where not blocked from calling out to the Internet, UPNP is disabled on my network, but the E1 Pro that did bind worked this way, so if the cameras where uploading to the cloud without my knowledge, it would have worked.

All Cameras have now been blocked from Internet access as a precaution.