Almost 1,000 bus drivers in London are to stage a series of strikes over pay.Members of Unite employed by Abellio in south and west London will take 10 days of action in the run-up to Christmas.The union said the company had not made an offer on pay even though an increase is due in January.The workers will strike on November 22, 25, and 26 and on December 1, 2, 3, 9, 10, 16 and 17.