Currys PC World is apologising after some Irish customers were mistakenly asked to pay import duty.
Several people ordered from the retailer's Irish site, and paid the Irish price and VAT as normal.
But they then received a message from the company to say their product was coming from the UK, and they'd have to pay import duty.
However, Currys PC World says it was a technical error.
In a statement, the retailer said: "A small number of our customers in the Republic of Ireland have mistakenly been asked to pay import duty on their orders.
"We are contacting all affected customers to refund them any costs they may have incurred. We apologise wholeheartedly for the inconvenience.”