Ali, a student, buys an electric bike from Race Ltd. The bike is described as having a battery with enough power to run for 50 miles. Ali uses the bike every day for 5 months but notices that the battery is no longer retaining the charge and runs out after 5 miles. Ali also pays to download a film but when he watches the film he discovers that the last 30 minutes are missing. Advise Ali what he can do on legal grounds?