No buyer protection at all, don't use this app. Bought a PS4 controller looked real until it started acting funny decided to open it up, find out it's a really convincing bootleg, went to the app user is no longer there, reach out to Mercari support, and they want me to get Sony the manufacturer to "give a written statement" saying it's a unofficial product, yeah I'm sure they will verify that for me really fast. Worst buying experience ever, just stick to Ebay.