Deliver from Waitrose Sushi counter to BN1

Hi there! I need (yes - need!) 2 packs of waitrose 'Cali crunch rolls' to be purchased from the 'sushi daily' counter at Waitrose Brighton and delivered to my office near Brighton station please. Between 9am and 2pm on Thursday 20th Dec. The Sushi daily counter is a specific area towards the back of the store and is different to the sushi in the stores food to go section. I will obviously pay cash to the amount of the sushi + £15 delivery fee on top.