Complex sentence: By June 2010, Big W had withdrawn the fuel discount benefit for cardholders in Western Australia and South Australia, and in August 2010, Big W also withdrew from the fuel discount benefit for cardholders to all of Australia (except Tasmania).
Split into simpler sentences: By June 2010, Big W had withdrawn the fuel discount benefit for cardholders in Western Australia and South Australia. In August 2010, Big W had withdrawn from the fuel discount benefit for cardholders to all of Australia (except Tasmania).