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Why do you always say that the credit card bank is different from the card number?
that is to say, the card number of your bank card is inconsistent with the bank to which you belong.

For example, yours is a CCB card with the card number of 123456, which is unique in China. But when you enter it online or on your mobile phone, the card number is 123456. Yes, when you enter it into the bank, it becomes the Bank of Communications, and the system prompts that it is inconsistent.