Consumer watchdog Which? has encouraged the public to switch energy suppliers in order to avoid debt.
It comes after a survey from the body revealed that five out of the six largest energy firms in the UK scored less than 50 per cent for customer satisfaction.
In addition, one in five of respondents had experienced problems such as receiving bills with errors on them – or not being sent bills at all.
Jess Ross, the editor of the organisation’s website, said she was “shocked” by the findings.
“Too many suppliers are letting customers down and charging them more and more for the privilege … [they] are providing essential services that people can’t live without, but this isn’t an excuse to offer poor value for money.”
Changing companies could be a good form of debt management as it may save consumers approximately £250 a year, the watchdog said.
The government recently launched a television advertising campaign to encourage people to be more energy efficient.
By Jamie Price