UK travel and leisure retailer Lastminute.com will face legal action unless it repays over £1m to 2,600 customers, the Competition and Markets Authority warned.

“It is wholly unacceptable that thousands of Lastminute.com customers are still waiting for full refunds for package holidays despite the commitments the company signed with us,” said Andrea Coscelli, chief executive of the CMA, in a 12 February statement.