1. If you buy a large quantity of goods, you can ask the seller to issue an invoice in the mall or online, or you can provide a consumption contract or proof materials. It must be stamped with the official seal to be effective, not a handwritten receipt.

2, housing renovation loans, can provide proof of housing property renovation, such as property certificates, or commercial housing invoices and other related information, as well as information that can prove the decoration behavior.

3. If it is a travel loan, you need to provide proof of the contract signed with the travel company. If you are free, you need to keep relevant certificates such as scenic spot tickets, restaurants and hotels, and round-trip tickets.

4. For the car loan, you need to provide information such as the car purchase contract and down payment certificate signed with 4S stores or dealers.