The money-saving expert’s charity has changed policies – and is now gearing up to take on regulators and insurers

“I’m not a case study”, says the money expert and broadcaster Martin Lewis, politely but firmly batting away questions about his own mental health.

“I’m not being rude to you in any way. All I want to do is let people know that like many people, I have brittle mental health, and I have experienced my dark days, but I don’t see the need to make that public.”