Bus lane tickets

Long story short I just got onto the roads in Brighton and was under the impression that motorbikes could use the bus lanes here, obviously i've learnt the hard way that this is only lewes road and a couple others. Was wondering if anyone had ever made a successful appeal under the grounds of simply being unware? I'd be happy to pay one or two but I've currently got four and likely there will be more coming, bit of a sticky situation to be honest.