article_snippet: A grandmother was left shaking with worry after being sent an energy bill demanding more than £9,000 - despite
article_snippet: A grandmother really only owing A grandmother energy supplier £59.
article_snippet: grandmother was told grandmother owed more than £8,000 for gas and over £1,000 for electricity - 150 times more than the amount grandmother actually had to pay.
article_snippet: Margaret Corey, from Fulwood, Lancashire, said: 'It said I owed £8,047 for gas and another £1,259 for electricity and that it would be taken out of my account on March 9. '
highlights_snippet: Energy giant set up grandmother's payment plan incorrectly on phone .
  
highlights_snippet: grandmother was then sent a bill for £8,000 for gas and £1,000 for electricity .
  
highlights_snippet: The 72-year-old said grandmother couldn't stop shaking after getting letter .
  
highlights_snippet: grandmother feared money would automatically be taken out of grandmother bank account .
  