The discount for the December installment of China Merchants Bank Credit Card is 2.2. China Merchants Bank credit card installment repayment refers to the installment payment activities carried out by China Merchants Bank credit card holders at merchants specially appointed by China Merchants Bank, and the specific rate of this activity is often determined by direct negotiation between the cardholder and the merchant or the card-issuing bank. The cardholder No corresponding handling fees are required.