Would you have the confidence to walk into a designer boutique and ask for money off an impressive frock? Justin helps two label-loving ladies haggle money off just such a frock. Three streetwise London cabbies hit London's hi-fi stores looking to bag a bargain. Justin goes undercover at a second hand car dealership in need of a jump start. He brings in a group of former customers and asks them to spill the beans on the service they experienced - they believe the customer is always right, but will the car dealers agree?