The adjustment period of sub-payment quota is not fixed, and different payment institutions and payment platforms may have different adjustment periods. Sub-payment amount will be adjusted periodically according to the user's credit rating and payment history. The adjustment cycle of most payment platforms is once every six months or once a year, which can ensure the stability of payment quota and the convenience of users. However, for users with high credit rating, the payment platform may make more frequent adjustments according to their payment performance and credit situation to better meet the payment needs of users. In addition, some payment platforms also provide channels for users to actively apply for adjusting the payment amount, and users can apply according to their own needs and actual conditions.