Wow, thats a new one I never heard before, lost them on the bus. I'd wait to see what the others leave for feedback and go from there. I bought some comics from a guy awhile back which got water damage when that big rain storm hit the Northeast and the seller did let me know it happened and refunded my money. I left a positive saying thanks for letting me know of the damage and refund because I know it was all legit. In your case, they may not of got what they wanted and told you they lost them. If all the others who won at the same time you did do get their stuff, then I'd leave a neutral at least.