from the
ladbrokes site in the rules.
If an error is made in the prices, terms or market conditions provided by
Ladbrokes, we reserve the right to correct any mistakes (e.g. where a price is incorrectly quoted, or the margins for Handicap betting have been reversed). Should this occur every effort will be made to contact the customers affected to inform them of the error and to offer them the choice of keeping the bet at the correct price, terms or market conditions (if available) or voiding the bet. If no contact is made, the bet will stand and will be settled at the correct price, terms or market conditions.