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What are the last three digits of the signature column when China Merchants Bank activates the credit card?
Hello, the last three digits of the signature column are CVV code, CVV, which is the card verification value, mainly to protect the security of your credit card. Please don't reveal it.

If in doubt, please add enterprise QQ customer service 4008205555 or WeChat to WeChat official account "China Merchants Bank Credit Card Center" for detailed consultation.