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How many years is the validity period of ICBC bank card SMS?

(1) My first customized free SMS reminder of the balance change of industrial and commercial bank cards will expire in one year. After the expiration, I need to continue to use SMS to remind me of balance changes. Expense 2 yuan/account/month.

② Use the second industrial and commercial bank card to receive SMS reminder information of balance change, and the fee is 2 yuan/account/month.