Mounting bracket plate and round metal collar screws

After an incident, I decided it is time to order security cams. Looking around at the different ones, and hearing so much about Ring, placed an order for two of them-cost $400.00. The directions are not so great, and couldn't find a video that talks about the round metal collar and how those need to come off, in order to get the ball of the camera into mount it. The screws in both cameras I received will not come out. They look stripped but they are just in so tight and the screwdriver will not get them out. Not having fun setting up and installing these. Had to call customer care, twice, as the first call got dropped. They are sending me new mounting brackets. I am about ready to send both spotlight cams back and try another company. :( Reviewing this forum, seems like there are a ton of issues with all of Ring's products- good sleek marketing, but are these just products??