Over the last two years, over one-third of British households have been billed incorrectly by their energy supplier.
According to a new uSwitch.com report, more than one in five people have received an incorrect bill on several occasions and 40 per cent of consumers are owed money by their providers.
Many people fall foul of meter reading discrepancies, with some £137 of unexpected charges owed on average.
Ann Robinson, director of consumer policy at uSwitch.com, explained that one way in which to combat erroneous billing is to install smart meters.
"I suspect that suppliers will continue to be haunted by this reputation for inaccurate bills until smart meters finally lay that ghost to rest - unfortunately that won't be for many years," she said.
Ms Robinson urged consumers to respond to meter reading requests and supply their own readings as a means of avoiding discrepancies.
The price comparison site recently warned that the UK could see its largest ever increase in household energy bills this year.
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