How to deduct 2 yuan money every time the Postal Savings Bank card withdraws money or saves money? This is an information tip. Isn't it 3 yuan a month? Why do you always deduct me, 2 yuan?

Hello, China Postal Savings Bank's current account change SMS notification service covers 3 yuan every month and 30 yuan every year; The inter-provincial deposits in the Postal Savings Bank account are 0.5% of the transaction amount, with the lowest 2 yuan and the highest 20 yuan; Cross-city deposits in the province are not higher than 0.5% of the transaction amount, with the lowest 2 yuan and the highest 20 yuan; Intra-bank inter-provincial and off-site withdrawals are charged at 0.5% of the transaction amount, with the lowest 2 yuan and the highest 50 yuan; Withdrawals from different places in the province and across cities are not higher than 0.5% of the transaction amount, with the lowest in 2 yuan and the highest in 50 yuan; 2 yuan/pen for inter-bank ATM withdrawals in the same city in the province; I hope my answer is helpful to you.