Pretty sure no one works for Rize.
Out of 4 batteries they sent you (which is extraordinary on their part!), you couldn't come up with enough screws to have one working battery? Do you know how to work a screwdriver? Some people don't, and that's okay but that sounds more like the problem.
And a lot of people don't want to watch amateur videos when it sounds like Rize has gone above and beyond to rectify their alleged screw ups. (Get it? "Screw ups". Ha!) Maybe you need to find a buddy or an LBS to help you out.
TT