Cách sử dụng
A voucher is a piece of paper or a digital code that you can use to pay for something. It's like having free money to spend at a specific place. For example, if you have a voucher for a restaurant, you can use it to buy your meal instead of using cash or a credit card. Vouchers can also be used for shopping, entertainment, and travel. Make sure to read the terms and conditions of the voucher before using it, to be sure you know what it can be used for and any expiration dates.