The owner of electrical goods retailer Comet said sales at the chain's internet arm were hit because of a decision to fully align web and store prices.
According to Kesa Electricals, which has revealed a 22% plunge in sales for the period between May and 31 July, the Comet.co.uk website showed "an increasingly improved trend," but overall performance was hit by the price restructuring.
The company also said that the decision prompted a reduction in web "click and collect" transactions, as well as the downscaling of two specialist web sites.
"During the period one store was closed and one right-sized. In addition, after a successful store relay trial, 60 further stores will be relayed before peak season," Kesa added in its results statement.
According to Kesa's chief executive Thierry Falque-Pierrotin, this year's trading conditions have been tough in comparison to good results obtained last year due to the World Cup.
On speculation around a possible sale of the beleaguered chain, the CEO added that the group is examining strategic alternatives but would not comment further.
"We will continue to implement our strategy of growing a cross-channel, service-led, specialist model, adapting our plans to meet an increasingly challenging market environment," he said.