I am looking for some advice from some experts. I sold a 35mm Canon lens on ebay. The buyer received it and said the scratch which is photographed was present. The buyer claims the bottom lens cap became loose during shipping and the cap must have scratched against the lens. Is this even possible? The lens cap was snug, wrapped multiple times in plastic, and then packed tight with layers of bubble wrap, so there was no room for movement. What could the buyer's angle be for wanting to return this? Is this something that could really happen? I don't see how the bottom lens cap could come loose during shipping and cause this kind of scratch. Any opinions are greatly appreciated! The first picture is the before, the next is the after.