I have a few boxes of your 3mm Basswood. Each piece of wood is covered with a full white sticker underneath the code reader sticker, that covers the entire piece of wood. The white sticker is IMPOSSIBLE to remove!! It is so sticky and bonded to the wood, that it can come off. I have tried warming it with a hairdryer, even warming it in the oven, and the sticky residue seems like it has absorbed right into the wood. It is impossible to get it off!! Please help me!!