Virgin Media has issued an update after Martin Lewis' warning.
The consumer champion took to Twitter yesterday to inform followers that prices are about to increase. He said: "It's announced it is putting most prices up by an average 14% this spring, but watch out for the letter, as it means you can leave penalty free or haggle."
The increase will hit most Virgin Media cable companies in the UK, which includes those with broadband, TV or fixed-line phone packages. The rise will come into effect on April 1 or May 1.