I opened the account change SMS reminder of the Postal Savings Bank.

Does not affect the use of online banking. It's just that after you use online banking, the post will not continue to send text messages to remind you how much you have spent and how much you have left. Actually, personally, I don't think SMS reminder is needed. If you spend money on Taobao, Alipay will send a message for free to remind you how much money has been deducted from your card. Post SMS reminder can be turned off by SMS. Send QX to 1 1 185 to turn off this function. I hope I can help you. O(∩_∩)O~