A fair few places in the Borough of Croydon have London postcodes such as parts of Thornton Heath, Woodside Green and South Norwood to name a few.
Palace IS a LONDON CLUB but is based IN CROYDON numbnuts which explains why people describe Palace as being based in CROYDON.
Your disputing the...
If your really that bored dickhead, have you considered getting a f***ing job? It really beats hanging around the house all day with your pikey wife/girlfriend watching Jeremy Kyle or hanging around the George scrounging money for your next pint. It's people like you that give Croydon a bad name.