An official airdrop event (ends on 2023-12-31). If you are interested, you can participate. The full cost is about 0.36$ (specifically, it depends on the price of the bnb).

process:
1. Sign up. Mainland China may not be able to register through the quoted article below. You can enter through the event information in the app (the "🔔" mark on the upper right side of the homepage). You can see the event by entering the event group, where you can register.

2. Create a web3 wallet. Enter the "Funds" of the app, slide the upper menu bar to the left to see "Web3", and do the rest by yourself. You can also quickly enter through the shortcut entry on the editing home page.

3. Send tokens to wallet. It is recommended to use bnb to send to bsc, the network fee is the lowest (0.0006bnb, about 0.14$) and the cost of subsequent transactions is relatively low, and it only needs to be sent once (if you send usdt or other currencies, subsequent transaction tokens are also needed bnb acts as gas fee, so you also need to withdraw bnb to the web3 wallet account). You can do it in conjunction with the recharge tasks in the "Reward Center" to get some spot transaction fee discount coupons.

4. Trade tokens. Just trade any amount. Because it is matched based on the UID of a certain account. The amount can be smaller, such as 0.1 or 0.01 or less.

5. Remember to check whether the task is completed.

For example, my operation: transferred 0.07 bnb to the bsc wallet of the web3 wallet, then exchanged 0.1 usdt (total cost 0.17$), and finally recharged all the remaining bnb back to An (the network fee at this time is almost negligible) , only 0.000063bnb, which is less than 0.02. A certain bank is really cheating. The withdrawal fee is nearly 9 times of the deposit), so the remaining 0.1usdt is ignored.

I happened to complete the task of recharging 10$ and received a 30$ spot transaction fee refund coupon. Please be careful to use it manually before you want to do spot transactions, otherwise it will not take effect (as well as the expiration time and validity time of the coupon).