Facebook will now let you file a complaint about businesses you’ve had a problem with if you bought something after clicking on one of their ads. If enough people complain about a business, it could lead to Facebook banning the company from running ads.

The new policy is rolling out globally starting today, and it’s meant to help Facebook fight back against another type of advertising abuse on its platform. Facebook says it’s trying to combat “bad shopping experiences,” which can cost customers and make them frustrated with Facebook, too.

Facebook is particularly interested in a few problem areas: shipping times, product quality, and customer service. This isn’t just a matter of misleading advertising: if a company regularly provides bad service, products that don’t meet buyers’ expectations, or just frustrates consumers, they risk getting in trouble with the platform.