A power company has apologised after a Norfolk couple who were not customers complained they were being harassed to pay bills as high as £4,000.
Shirley and Vernon Bunn, from Hainford near Norwich, have been receiving bills from electricity supplier Npower for nearly four years.
The company had threatened to cut off their power but have now climbed down.
"We told them Powergen supply us and they paid £80 compensation but the bills keep on coming," said Mrs Bunn.
"I was nearly suicidal basically because they just wouldn't leave us alone."
The company have now apologised and promised to put things right.
In a statement they said: "We're very sorry if we've caused Mrs Bunn any worry or upset and we'll look into the error immediately and contact her to rectify this matter."