You can try to apply. After the bank receives the customer's application, it will make a comprehensive score based on the information provided by each person. You can apply through the CCB Mobile Banking APP, WeChat or website, or you can also submit your name For proof of financial resources, go to the local CCB branch to apply. For example, if you have real estate or car ownership in your name, you can also provide it if you have a large regular deposit with CCB. The more materials you have, the more helpful it will be for new card review and credit limit review. Yes, the specific overdraft limit that can be obtained will be comprehensively assessed by the bank's reviewers based on the credit status.