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Walter is the father of my son’s best friend at school. He works nights as a security guard at a bank in the City of London. He has three kids. They are really struggling, as the prices of everything - petrol, electricity and food - have all increased dramatically. Where £20 use to buy enough electricity for a week, it now lasts just a couple of days.

But Walter, whose family comes from Sierra Leone, and who returned there recently for his mum’s funeral, counts himself lucky: “I think of all those back home with literally nothing. No job, no money coming in, and prices just going up and up. It’s terrible.”