How to get travel refunds on cancelled rail travel to the Alps

Since the rest of the ski season has now been cancelled due to coronavirus, if you have independent train travel booked for dates this March or April you'll be wanting to ge a refund from the rail company or ticket provider.

Your tickets will surely be refundable or exchangeable. Exactly how this works, we don't know yet. We are trying to collate information from ticket providers for you, to make things clearer.
 
Eurostar, for example, had initially offered this advice:
 
“We continue to operate our trains to all destinations. However, we recognise that many customers are changing their travel plans and to provide flexibility and peace of mind we are introducing a measure to help customers. If you are due to commence your outbound Eurostar journey between Friday 13 March and Tuesday 7 April 2020, we will be pleased to offer you an eVoucher equivalent to the full value of your current Eurostar train or Eurostar package (train + hotel) booking. This eVoucher may be used online for a new booking to be made by 30th June 2020, for travel up to 12th December 2020 subject to availability.
Please note that no fees are applied but if the value of your new booking is greater than the value of your eVoucher, you will need to pay the difference.”
 
However, this advice didn’t offer skiers any opportunity to rebook for the ski season.  Following feedback from Snowcarbon and from skiers directly, Eurostar has promised that the eVoucher will apply to journeys during the 2020-21 ski season too.

Eurostar now says:

"Customers with existing bookings to the French Alps are able to receive an e-Voucher equivalent to the full value of their booking which can be used for the next ski season.
 
"We are implementing this at the moment as it’s different to our core routes, but the information will be available on the below link:
https://www.eurostar.com/uk-en/travel-info/service-information/coronavirus-and-eurostar-service"

While this is great news and a sensible decision by Eurostar, the company has yet to specify exactly how skiers can do this.  We have asked Eurostar to clarify, and await their response.
In the meantime, you are welcome to consult the Snowcarbon blog, which will publish articles as soon as we have more information.