The processing time of different banks will be different. Some can apply by phone. You will know the application results when the customer service transfers the test or log in to mobile banking and you will be prompted whether you can increase the credit card limit: 1. You can slowly accumulate personal credit through daily use. For example, it is easier to increase the credit limit if you consume more, apply for more installments or withdraw cash, etc. that can bring profits to the bank; 2. You can provide proof of good economic strength, such as: Copy of real estate certificate, bank loan account or deposit certificate, etc.

If you have other specific questions, it is recommended that you call the bank’s customer service staff and hope they can help you.