I bought an open box pump for my pool cover and save 100 bucks. It was missing the threaded part the hose attaches to, so it was useless. That is, until I 3d printed a replacement. I also made spares for when this weak point breaks in the future.
Is repairing it an option? Then you'll have saved the money and the item.
I just assume they have a charity relationship that meets the minimum to not technically lying, while allowing them to just keep 90% of the money.