Why does Alipay deduct the SMS fee every month? Why don't people deduct it?

Dear, the SMS verification service has been opened. After opening, Alipay will send you the mobile phone verification code when using the balance and quick payment on the computer (you don't need to check it when paying with the mobile phone client). If you need to log off, log on to Alipay backstage, enter the security center, enter the SMS verification service, enter the management point, and close the SMS verification service. Just cancel the telephone manual service. There is one in 0.6 yuan, but considering that it is only 60 cents a month. It's safer to have a verification code.