You don't need to download it, just pay attention to the official WeChat account of the bank you choose. After entering the official account of WeChat WeChat, there are the main functions of WeChat Bank at the bottom. Click the corresponding button and a menu will appear.

Just pay back at WeChat Bank.

Wechat repayment method: 1. First, open the WeChat wallet and find the financial management function. 2. Click to enter, and then there is "repayment" in "My". 3. Click "Repay the Loan" to enter and click "Start Repaying the Loan". 4. Enter the repayment amount, select the repayment date and card, view the service agreement, and click Next. 5. Confirm the repayment plan, click Next and enter the payment password.