Eurostar's Nick Mercer: "Procedures were followed"
Eurotunnel has announced it is closing its shuttle car service to new arrivals because it is at "saturation point".
It comes as Eurostar launches a review into train breakdowns which have stranded and delayed tens of thousands of passengers since Friday.
Eurostar trains modified to better cope with snow are being tested, as services were suspended for a third day.
More than 55,000 travellers had journeys cancelled after six trains broke down in the tunnel.
Eurostar said the reason was unprecedented winter weather in France.
The company hopes to announce on Monday evening when services will resume.
But it has warned it will take time to clear the backlog of stranded passengers.
Thousands and thousands of families are having their Christmas ruined this year
Transport Minister Sadiq Khan
The review follows the cancellation of services and the trapping of 2,000 passengers on six trains in the Channel Tunnel on Friday and Saturday.
Many passengers spoke of their "nightmare" experiences of hours stuck in the tunnel with little food and water, and said there was an apparently disorganised response from the authorities which "lacked empathy".
Eurostar said the review would be an independent inquiry led by Christopher Garnett, a former commercial director of Eurotunnel and chief executive of rail company GNER, and Claude Gressier, who is inspector general of bridges and roads in France.
Transport Minister Sadiq Khan said he had asked for the review to report not to the Eurostar board but to him and to shareholders. He said he would be speaking to his French and Belgian counterparts about the issue.
"Thousands and thousands of families are having their Christmas ruined this year," he said.
A statement on the company's website said it "sincerely regretted" having to halt services for a third day.
Travellers who had bookings for Saturday, Sunday or Monday will be able to claim "reasonable out-of-pocket expenses" for hotel, transport and meal costs.
If your journey is not essential, do not travel
A full refund will be offered to those whose journeys have been affected
Passengers whose journeys were severely disrupted on Friday or Saturday will also be given £150 compensation, out-of-pocket expenses, and a free return ticket
Those who had bookings for Saturday, Sunday or Monday can claim "reasonable" out-of-pocket expenses such as hotel, transport and meal costs
All updates will be posted on the
and given out to news outlets
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