Why should CCB deduct 24 yuan information fee?

Hello, the landlord, it may be because the landlord has launched mobile online banking, and CCB stipulates that if the deposit is less than 300 yuan every quarter, 2 yuan information fee will be charged. No matter whether there is 300 yuan deposit or not, it is zero deduction 10 yuan. You can ask the bank staff, customer service manager and so on.