The company “failed to adequately protect and respond to their customers when it was needed most”, regulator Ofgem says.
Nearly 1,400 OVO customers are to receive compensation after the energy firm was hit with a £2.37m penalty for complaint handling failures.
Energy regulator Ofgem said the firm, one of the UK’s largest energy companies, will pay more than £378,000 directly to affected customers.
Due to the “severity of consumer detriment”, OVO has also paid £2m to the Energy Industry Voluntary Redress Scheme – a fund supporting customers and developing energy projects.
Jacqui Gehrmann, from Ofgem, said OVO “failed to adequately protect and respond to their customers when it was needed most”.
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“This is not acceptable,” she added.
OVO is Britain’s fourth-biggest household energy supplier and has about four million customers.