Bank card suddenly deducted 200 yuan social security contributions

Is the question "What is the reason for the sudden deduction of $200 from my bank card for social security"? There is a withholding agreement with the bank. Bank card will not be deducted for no reason 200 yuan social security fees, social security fees were deducted 200 yuan of the situation, is the existence of a withholding agreement signed with the bank, this situation needs to cancel the withholding agreement will not suddenly deduct social security fees. Social insurance premiums refer to the social insurance fund in the process of mobilization, employees and employers in accordance with the amount and period of time to pay the social insurance administration, it is the main source of social insurance fund.