1. In general, it is impossible. The credit card limit is fixed and can only be used within your existing credit limit.

If you need to spend more than your limit, you can apply for a temporary limit. I applied on WeChat, and the approval was quick, almost at that time. Of course, places are limited. As far as I know, it should not exceed half of the original quota. When applying, it will be counted together with the original quota. For example, the original quota is 6,543.8+0,000, and you can apply for a quota of 6,543.8+0.5 million.