No plans for toilets to be free of charge at other London stations, says Network Rail

Toilets at London Victoria, London Bridge and Charing Cross are currently all free to use as a "gesture of goodwill recognising the disruption passengers have endured at these stations"

from getsurrey - News http://www.getsurrey.co.uk/news/surrey-news/network-rail-no-plans-free-12325754