But in an open letter to Chancellor Rachel Reeves, Martin Lewis explained how O2 customers will see bills rise by 40% more ...

Under new Ofcom rules which were introduced earlier this year, mobile firms were banned from increasing prices mid-contract by inflation-linked percentages, and instead told they must give customers a ...

Martin Lewis had issued a call to Ofcom to strengthen its regulations regarding broadband and mobile price increases following last month's announcement of fresh hikes for O2's 15.6 million customers.

Money expert Martin Lewis is urging O2 customers to teach the network a lesson for increasing its mid-contract price rise.