Really. According to the investigation of Cai Hui Law Firm, differential repayment is a way of installment payment. Installment payment generally has two ways: differential repayment and equal repayment. The former pays more first and pays less later; The latter pays the same amount every time. The cardholder with the difference in repayment should take the initiative to apply to the credit card center for deferred repayment, installment repayment or reduction of a certain amount of liquidated damages. So the credit card sent a message saying that the difference in repayment amount was 5500.