take it back and show them and they'll tighten it, however ask to watch them do it because if they drilled to shallow and they try to force the screw down it will strip possibly and you want to see if it does so you can call them out on it. In fact ask them first if they drilled with the 4.1 or not. They should have and if they didn't you may have problems later on. If the screw kepps turning without getting tighter it's for sure stripped and the toe is that much more likely to come out when skiing hard.
doesn't need a remount. more like a screwdriver, but thats besides the point. just take them in and they will fix them for free. try not to be a dipshit when you talk to them. polite and courteous gets you a ton farther than retarded anger and accusations.
I had the EXACT same problem with my Scratch 200 bindings (almost identical binding).
I took it back the the shop, asked nicely, talked to the head shop tech and he fixed it no questions asked, and said if I had any more problems to come back and talk to him.
the glue has probably dried leaving a bulge in between the binding and the ski. On mine he removed the screw, scraped the glue out, and replaced it with a brand new screw. I think it's the way to go, and now it's nice an flush. Your gap us bigger than mine was so DEFINITELY take it to the shop.