https://arstechnica.com/tech-policy/2017/12/how-the-net-neutrality-repeal-helps-isps-keep-their-hidden-fees-hidden/

Hidden fees that show up on broadband bills after customers sign up for service have long been a source of frustration for Internet users.

Because advertised prices often don't reflect the full cost of service, the Federal Communications Commission in 2015 forced ISPs to be more transparent with customers about hidden fees and the consequences of exceeding data caps. The new requirements were part of the net neutrality rules—and are therefore going to be eliminated when the FCC votes to repeal the rules next week.