Some Genesis customers are in for an unexpected windfall after the company has committed to refunding more than $1 million to business clients it has overcharged.
The company will refund 1576 customers who overpaid a total of $1,138,943 between 2014 and 2020 after the Commerce Commission found it is likely to have breached the Fair Trading Act.
A further 1356 customers who were undercharged by more than $2.4 million will not be chased.
The Commerce Commission has issued Genesis a formal warning over its actions.
Genesis alerted the Commerce Commission in July last year after it appeared to have issued invoices that displayed inaccurate multipliers that were applied in respect of some electricity line charges and resulted in customers being charged the wrong amount.