Charlton Women won their play-off with Blackburn last Sunday 2-1 but were not guaranteed promotion to the new Womens' Championship until the outcome of the FA's reorganisation of Womens' football was announced on Monday morning.
The team will no longer compete in the Womens' Premier League (South) but in the newly formed Womens Championship which is a national competition and which is the second level of womens' football in this country.