All Grillz are custom made to order. There are No Refunds. We try our best to make the grillz true to size, so if for any reasons you have issues, please contact us first. Generally if the mold wont work, we will let you know before we get started to reach a solution. We have put together very detailed instructions on making a mold, and ask that you read carefully and are patient when making the mold. If your mold will not work, you are responsible for purchasing another mold kit.