They (seafrance) have always been pretty easy going, we usually book the cheapest crossing on the day we want to cross the water and just turn up for the one we get there for, never the booked one and they let us on. Never the right car and thus plate either, and the cars are booked with 4 people and never full.
Never been hit with an extra fee.
On Speedferries this year so see how that goes. But we did speedferries couple of months back for the Reims trip and turned up in a different car than booked and we got on no extra fee. But then the boat was delayed by a few hours as someone had put a nappy down the bog so the boat couldn't sail. Pah i would be happy to cross with no bog, if need be pee off the back and i'm sure the wind would keep me safe, i could add to the rooster tail.
I am on teh last speedferry on friday night so do not hold out my hopes of being on time!! Looks like LM Bleu at 2am
