1. Log in to official website, enter the legal tender trading page, and select the advertisement that suits you according to the price, limit and payment method. Click buy. At present, it supports three payment methods: bank card transfer, WeChat scanning QR code and Alipay scanning QR code.

2. Enter the amount of dollars to be purchased or the purchase amount, and then click Place an Order. Please read the comments of the platform and merchants carefully before placing an order to avoid abnormal orders.

3. After confirming the purchase information, transfer the money to the other party within the time limit. After the transfer is finished, please be sure to click "Transfer Complete".

(1) The name information of the transferor must be consistent with the real-name authentication name;

(2) Inter-bank transfer on non-working days, with each transfer amount not exceeding 5W;

(3) You need to transfer money directly to the seller through online banking/mobile banking, Alipay and WeChat according to the payment method of the seller. If you have transferred the money to the seller, don't click "Cancel the transaction" unless your payment account has received a refund from the seller.

4. If you need to cancel the order, you can click Cancel Order in the lower right corner of the payment page, and then you can cancel the order after confirming that you have not paid and will not pay after cancellation.

5. If you have any other questions or disputes, please click on the lower right corner of official website's homepage to contact online customer service.