It's not because you have more, but because we repay the money on time, the limit has increased.

credit card limit, also known as credit card available limit, refers to the maximum amount that you can use with your credit card, which includes the credit limit (that is, the maximum credit card overdraft limit) and the amount deposited in the credit card.

the amount of any credit card depends on the effective income provided by the individual in the application process and the guaranteed value of the assets. The credit limit of a credit card is positively related to the income and secured assets of the applicant, that is, the higher the income and secured assets, the higher the credit limit. Therefore, the applicant must provide proof of income, provident fund social security, and asset guarantee statement. Asset guarantee includes fixed assets such as real estate and automobiles, as well as current assets such as savings and bonds.