Nationwide had the highest net switching gains with 51,254 over the period, followed by Lloyds Bank (50,061), NatWest (7,279) ...

The book tells the story of one man’s determined – and sometimes hilarious – attempt to keep his life from falling apart.

The average amount people with the likes of Nationwide, Lloyds, NatWest and Santander have in their savings is around £8,500 - though that figure is skewed by the wealthy who have huge amounts put ...