60
Task
wYou are in a restaurant and you are observing the following dialog:
wCustomer 1 (to waiter) Can I have a bill please?
wCustomer 2 (to waiter) Can I have a bill please?
wWaiter (to Customer1) It is £24.56.
wCustomer 1 (to waiter) Here you are. I am paying by Master Card.
wWaiter (to Customer 2) It is  £35.34.
wCustomer 2 (to waiter) Can you arrange home delivery?
wWaiter (to Customer 2) Yes, it costs £ 5.00 extra. In total it is  £40.34.
wCustomer 2 (to waiter) Here you are. I am paying by Switch card.
wCustomer 2 (Customer 1) Home delivery is very expensive here, don’t you think so?