The credit card limit is given by the bank according to the comprehensive score of the information submitted by the applicant. Reference items include age, gender, unit, income, position, housing, education, marriage, real estate, professional title, credit record, personal financial assets, etc. A score segment corresponds to a result, from not approving cards to approving cards, from low to high. After using the credit card for a period of time, you can also apply for an increase in the amount. I hope my answer can help you. . .