Communications regulator Ofcom is forcing broadband providers to let customers walk away from contracts at any point if speeds fall below "acceptable levels".
Bills for Virgin Media customers are to increase by an average of 5.9% from 1 February 2015, but those affected can leave penalty free if they aren't happy with their new costs.
Many Plusnet customers will be hit with price rises, including line rental increases, from 23 September. If you're affected, you can leave the firm without penalty.
Ofcom has told internet service providers (ISPs) to be more upfront about broadband speeds, after an investigation found many fail to follow its code of practice.