There is, sort of. On Amazon, you have to do test purchases. You can then file complaints to Amazon. In many cases, this results in a suspension or some other k

There is, sort of. On Amazon, you have to do test purchases. You can then file complaints to Amazon. In many cases, this results in a suspension or some other kind of ding against their account particularly if they can't verify an authentic supply chain. Amazon avoids getting in trouble by putting the legal responsibility entirely on sellers. They are just a 'dumb pipe' running the marketplace.