1. Confirm product information: When purchasing foreign products, you need to carefully confirm product information, including product name, model, specification, quantity and price. At the same time, it is necessary to know the import customs clearance procedures and related taxes and fees of this product to avoid unnecessary troubles.

2. Confirm credit card information: confirm whether the credit card used supports international payment, and check whether the payment amount exceeds the credit card limit. You also need to confirm whether the billing address and contact information of the credit card are correct.

3. Confirm customs clearance procedures: When purchasing foreign products, you need to know the import customs clearance procedures and related taxes and fees of the products. Generally speaking, import licenses, import customs declarations, commercial invoices and other documents are required. If necessary, it is necessary to carry out inspection and quarantine or pay other related fees.