A good deal: if something is a good deal, you pay a low price. You can say that a store has some great deals, for example
A bargain: the same as above
20% off the price is now 20% less than the original price
Overpriced: if sth is overpriced, it costs much more than you think it should
To order: when you order something that you are going to pay for, you ask for it to be brought to you, sent to you, or obtained for you. “to order things online”
Order number
To place an order
If you have a discount on the retail price, you pay less price than the price normally charged
Goods: things made to be sold
To be scheduled for delivery (tomorrow)
Online form
A secure payment page
To enter your card details
Get a refund
You can pay “Cash on Delivery”
To exchange a product
To track your package
Shipping rates