VoucherGiamGia is a web shop for discount vouchers, presented on the Vietnamese-language site vouchergiamgia.com. The public page describes topping up a wallet, choosing a voucher and reading the code inside the finished order.
The problem
The public page presents buying vouchers as a process that needs no manual handling by staff: the buyer does everything inside their own account and the code appears in the order.
How it works
- The site describes three steps. First, top up the wallet by bank transfer, using a QR code and a reference the system generates. The wallet balance updates when the bank confirms the payment.
- Second, choose a voucher. The price changes with the remaining validity and the quantity, and the unit price and total are shown before the buyer confirms.
- Third, read the code in the order. The order moves to "Completed" and each code appears with its expiry date.
- The page lists four kinds of item: a discount code, an account (phone number and password), a code tied to one phone number, and a code with a PIN. Each is shown in the order page according to its kind.
- Prices and ordering need an account, so a visitor without one sees only this description.
My role
Nguyễn Hải Minh designed and built the site together with AI, working with Claude and Codex.
Checked
- The public landing page at vouchergiamgia.com opens and shows the steps and item kinds above (10 Nov 2026).
Not checked
- Sign-in, prices, ordering, payment and code delivery were not run, because they need an account.
- The technology behind the site was not checked for this page.
- The order shown on the page is the site's own illustration, labelled with example codes. It was not compared with a real order.
What can be observed
On the public page, a visitor sees the three steps, the four kinds of item and the buttons to sign up or sign in. Prices appear only after sign-in.
FAQ
What is VoucherGiamGia?
VoucherGiamGia is a Vietnamese-language web shop for discount vouchers. The buyer tops up a wallet, chooses a voucher and receives the code inside the order.
How does a buyer get a code?
According to the public page, the buyer tops up the wallet by bank transfer, chooses a voucher and then finds the code, with its expiry date, in the finished order.
Can a visitor see the prices without an account?
No. The public page states that an account is needed to see prices and to order.
What was checked on VoucherGiamGia?
The public landing page opens and shows the steps described here. Sign-in, prices, ordering, payment and code delivery were not checked.