How to go to Liverpool?

You want to go to Liverpool but you don’t want to lose all your money during the transport? Wa have the most economic solution :

1)Take the train from Valenciennes and go to Calais (23€)

2)Take the Eurostar and arrive in London (100€)

3)Take the Virgin Train from London to LIverpool (18£)

You will pay the same price when you go back in Valenciennes.