I suggest that you try to log into the request database to see if there is a request logged for your email address. If there is no request for your email address, you need to enter a new request where you say that you are currently travelling (you are supposed to be travelling tomorrow)

Use this link to come to the request database.

https://eurail.zendesk.com/hc/en-001/requests/new

Click "Sign in" in the upper right corner.

Enter your email address and Click " Get a password".

If the system doesn't recognise your email address, then there is no request registered and you need to go back to the start screen and enter a request.

If you get a password, you can then log in and look at the status of your request.