Bill debt soars but many don't know help is available

Billions of pounds are owed to water, broadband, and energy companies by customers – the majority of whom are unaware that support is available.

More than £7bn in bills and charges was owed by March last year, the UK's spending watchdog said, but estimates suggest that total has grown since.

One pensioner told the BBC the credit on her energy meter often ran out three or four days before she received her pension, but she said her energy supplier had been helpful after she let them know she was struggling.

Most people did not know repayment plans and cheaper social tariffs were available to those in debt, the National Audit Office (NAO) said.

Only a third of eligible broadband customers and 39% of water customers who were struggling to pay their bills were aware of social tariffs, the NAO added.

These are generally discounted packages on essential bills , such as water, energy and broadband, often available to people on benefits or who are struggling to pay. They can vary between suppliers.

It said energy customers on repayment plans owed £1,000 less on average than those in debt who were without.

"Regulators have made progress to support consumers, but they're not keeping up with the pressure now facing millions of households," said Gareth Davies, head of the NAO.