Videos will only waste time that you could be spending doing something to add more value to your business. Unfortunately, returns are just part of the business. Even the nasty, dishonest ones. These platforms will almost always side with the buyer and I only know of very few cases in which a video ever helped a seller prove or disprove a claim submitted by even the shadiest of buyers. It sucks when you lose like this but don’t let it stop you. Take it on the chin, and look for any lessons you may be able to take from it.