If you need to pay a deposit during the Alibaba transaction process and want to refund the 3,000 yuan deposit, you can follow the steps below:

1. Log in to your Alibaba account and enter the "My Alibaba" page.

2. Find "Security" at the top of the page, click "Transaction Security", and then select "Deposit Management".

3. On the "Deposit Management" page, find the order for which the deposit needs to be refunded and click the "Apply for Refund" button.

4. Fill out the refund application form, including the refund amount, receiving account and other information, and then submit the application.

5. Wait for Alibaba to review. If the review is passed, the 3,000 yuan deposit will be refunded to your Alipay or bank account.

It should be noted that the refund will take a certain amount of time, and the specific length of time varies according to various situations. In addition, if you encounter problems during the refund process, you can contact Alibaba customer service at any time for help and support.