Hello, at present, China Merchants Bank's credit card can provide cancellation certificate, card holding certificate and loss reporting certificate, and the principal cardholder needs to call the credit card customer service hotline 4825555 to apply manually. Time limit for issuing certificates: 3 working days. Cost ￥2 yuan/copy. It's free to send it by registered mail or surface mail. If express delivery is needed, an additional express fee of ￥2 yuan will be charged. Platinum/unlimited card customers are free; The original certificate is printed on watermark letterhead paper of China Merchants Bank, and the signature will be stamped with "Special Seal for Business Acceptance of Credit Card Center of China Merchants Bank Co., Ltd.".