The steps to save 10 off the Agricultural Bank of China 30 on Jingdong Daojia WeChat are as follows:

1. First, you need to download and install the Jingdong Daojia APP, and register an account in the APP.

2. Open the JD Daojia APP, select the goods or services you want to purchase, and add them to the shopping cart.

3. On the settlement page, select the payment method as "WeChat Pay".

4. On the payment page, select Agricultural Bank of China Credit Card as the payment card and enter the credit card information.

5. Enter the discount code "AB30", click Confirm, and the system will automatically calculate the discount amount.

6. After confirming that the payment amount is correct, click the "Pay Now" button to complete the payment process.