You can modify it in the following ways:
1. Log in to online banking of Minsheng Bank and click Credit Card-Credit Card Installment-Installment Management-Bill Installment Management;
2. Log in to the "National Life" APP and click "Finance"-"Inquiry by Stages";
3. Call the customer service hotline and transfer to manual service.
In addition, cash installment cannot be revoked. I suggest you contact our credit card customer service to provide your specific installment method to assist you in your inquiry.