Hello, whether through the "Credit Card Mall" of China Merchants Bank or taking China Merchants Bank's credit card to the physical store to directly brush the installment payment, China Merchants Bank's credit card only plays the role of a payment medium. After-sales service and warranty of specific goods can be directly contacted with merchants, who will generally issue official invoices and warranty cards as proof of enjoying after-sales service, and the specific after-sales details can be confirmed with the merchants.