One of the shitiest ground locations in the PL, to stand any chance of getting back to Victoria within 2 hours from Norwood Junction you have to leave the ground ten minutes before the end.
You can normally get the train to/from Thornton Heath from Victoria. That line had engineering works yesterday which is why it was even more chaotic than usual at Norwood Junction.
They were running rail replacement buses from Thornton Heath but I imagine it would have been chaos there too. I just got on a local bus and went to Streatham, so it wasn't too bad.