Replying to Boot/shop problems?

Yesterday I was at my local shop dropping off my new skis to be mounted, and they had a pair of b and e full tilts on a pretty good sale (about half off). I was in a hurry, and they only had the right boot on the floor, so I tried that one on, decided to buy them, and had them mount my skis with them. Well they ended up using my old boots to mount my skis, and giving me two right boots of different sizes, and my new boots BARELY clip in. After getting home, I had to go back to switch to the right pair. (28.0) And after skiing them today, I noticed that the left is severely tighter than the right, so I took the liners out. And guess what! The left liner is 28.5 and the right is 28. I really don't know what to do, I'm not satisfied with the service, and I don't know if the boot thing is a shop error or a manufacturer error? Advice?