My electricity bill is £200 but British Gas took £19,700 from my account and a month later they hadn't paid me back: SALLY SORTS IT

My electricity bill is £200 but British Gas took £19,700 from my account and a month later they hadn't paid me back: SALLY SORTS IT →

We run a family farm and have had a British Gas account for six years, paying about £200 a month for electricity. Last month the company sent a bill for £19,700 via direct debit