I need to get to London from Cambridge tonight. I am not yet sure if I'm staying the night or not. If I'm not, then I'd buy a super off-peak day return, if I am - the Overnighter.
If I buy a super off-peak day return, but decide to stay the night, can I pay the excess to the overnighter the following morning?
If I buy a super off-peak day return, but decide to stay the night, can I pay the excess to the overnighter the following morning?