1.there are many other ways to get REServations-and of course, needless to say: it all also depends on the when and where.

2.depending on your planned route there may not actually be that many alternatives available as training-except the overpriced US way of thinking: rentacar

3.if refund are possible-always less admin. fee, depends on type and from who you bought it-its always via seller. Again needless to say: read condiitons. And even if: it will take monthes before money to come back

The advice from the experienced travellers in the community is to use other ways to make reservations than the Interrail/Eurail website. You can look at the guide in the link:

https://community.eurail.com/train-connections-reservations-47/how-to-get-reservations-105

If you, after having looked at the guide, have questions about how to make specific reservation, please create a new topic with your travel details (departure date, time and route) and you will get advice.