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How much is the monthly deduction for opening the online banking SMS function?

If it is a card of China Merchants Bank, the charging standard of the new version of SMS function is 3 yuan/month/card, which is free three months before opening (including the opening month) (cancellation will no longer enjoy preferential treatment); Pension account, subsistence allowance account, medical insurance account and unemployment insurance account are free; Sunflower and above customers are free.