Vodafone claims to have more than 18 million customers in the UK, including nearly 700,000 home broadband customers.

The trial is the latest chapter of what has become known as the "dieselgate" scandal.

The bank has set aside an additional £800m, saying the number of eligible claims is expected to be higher than previously thought.

The think tank says the government should seize the opportunity to reform the tax system.

Average mortgage rates have increased month-on-month for the first time since February, says Moneyfacts.