The point being the onus is on the individual to remember their card, or, in the case of parking, get back to their car before the ticket runs out.
I can see the argument that is 'why should there be any charge for forgetting a ticket' but I don't think it is exclusive to our club, nor to life...
But it's a bit like complaining about a parking ticket when you're late back to your car, or when you get caught speeding, isn't it?
I'm sorry you had to shell out another £10, and that might seem a bit steep, but hopefully you'll not make the same mistake again. As pointed out before, it is...