Production and operation, investment and other fields. Cash installment, also known as cash installment, cannot be used in production, operation, investment and other fields (including but not limited to equity investment such as house purchase, stock and futures), but can only be used for consumption (including but not limited to decoration, household appliances, wedding, car purchase, student aid, tourism, medical care, etc.). ). Cash installment means that the credit card holder converts the available amount in the credit card into cash and repays it according to the specified number of installments.