Helping customers in a polite way
exchange
customer service
A lower price than usual for something
purchase
discount
shop
Something that you buy
purchase
shop
Shopping on the internet
online shopping
spend
A piece of paper you receive when you buy something
receipt
refund
Return an item that you bought online
get (something) back
charge
When you use money to pay or buy something
spend
serve
To help customers and sell things to them in a shop.
serve
spend
shopping center /mall
market
A special offer on a product
promotion
service
A large shop stocking many varieties of goods in different departments.
department store
Money given back to you if you return something
charge
refund
Take something back to a shop and replace it with something else
promotions
exchange