If the grillz don't fit correctly, then there's nothing that can be done. We made the grillz based on the mold kit you sent us. If they do not fit, it means that the mold kit you sent us had been done incorrectly. The mold kit can come out incorrect if you don't bite down hard enough or if you move your jaw even slightly when doing the mold kit. Unfortunately we cannot do anything on our end since we made the grillz based on the exact mold kit you sent us.