‘Billions in benefits are left unclaimed’ by Welsh families

But claiming what you are eligible for can make a “massive difference” to people who have been struggling with rising prices over the last few years, said Mr Lewis.

“It’s taken that worry away.

“People have said ‘I haven’t got to worry about watching the units on the gas and electric now’, and they can just feel comfortable in their homes and in life.”

It can also mean less demand on public services, said Mrs Walker.

“A pensioner who is claiming pension credit is less likely to draw on adult social services because they could heat their home.

“And when we look at children, we know that when we maximise working age benefits, educational attainment goes up, health goes up, weight comes down.”