From their
http://www.virgin.com/travel/news/50-reasons-to-sign-the-virgin-trains-e-petition
15. We give customers higher compensation when things do go wrong.
erm, no you do not.
Virgin charter:
If a delay to a Virgin train causes an hour or more delay to your journey (45 minutes in the case of a train on the London - Birmingham/Wolverhampton services) we will reimburse you with National Rail vouchers equal to 25% of the total.
Alternatively, if you are delayed on a Virgin train by more than two hours we will reimburse you with National Rail vouchers equal to the full price paid for the affected portion (outward/return) of the journey.
First Great Western
If your journey is delayed by more than an hour, we will compensate our customers, including Weekly Season Ticket Holders the full value in National Rail vouchers, of the part of the journey, which was delayed, i.e. 50% of the cost of a return, and 100% in case of a single ticket. If you are delayed in excess of two hours, we will compensate customers the full cost of your ticket.
East Coast
Customers delayed on East Coast services between 30 and 59 minutes will receive compensation of at least 50% of the cost of a single ticket or at least 50% of the cost of either portion of a return ticket (by 'portion' we mean either the outward or the return part of a return ticket).
Customers delayed on East Coast services between 60 and 119 minutes will receive compensation of at least 100% of the cost of a single ticket or at least 100% of the cost of either portion of a return ticket (by 'portion' we mean either the outward or the return part of a return ticket).
Customers delayed on East Coast services for 120 minutes or longer will receive compensation of at least 100% of the cost of a single ticket or at least 100% of the cost of a return ticket (i.e. both ways, not just one way).