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How much does it cost to open the SMS reminder service on the postal savings card for one month?

Hello, China Postal Savings Bank's short message notification service for current account changes, 3 yuan/month, 30 yuan/year; Pay Notice, 1 yuan/month, 10 yuan/year; Withdrawal notice, 2 yuan/month, 20 yuan/year; Notice of account transfer, 2 yuan/month, 20 yuan/year; I hope my answer is helpful to you.