The Blizzard Battle.net credit card refund process is as follows:

1. Search the Blizzard Game Service Center official account on WeChat.

2. Click to enter, log in and bind your Blizzard game account.

3. After logging in, after the refund window opens, make a refund on the page below.

4. Or you can choose to contact customer service, enter the refund, and wait for customer service to provide you with a refund entrance.

5. After entering the refund page, fill in the relevant refund information and wait for approval.