Britain's cost of living crisis is pushing millions to the brink

Nazmin Begum has a problem: she's having to pay much more to keep her two children warm and fed as the United Kingdom endures its worst cost of living crisis in three decades.

"Everything's increasing," she told CNN Business during a visit to The Boiler House, which provides discounted food, footwear and fuel vouchers from a red brick building on a public housing estate in east London.

Begum's energy bills for her one-bedroom apartment have shot up by about £70 ($92) in the past three months, even though she's using similar amounts of fuel. She works at Tesco (TSCDF), a supermarket chain, where she has seen "every single product" rise in price.