There is a short message reminder on the mobile phone for no reason, and I don't know whose it is.

If it is a SMS reminder of your own business, you can cancel it through the bank customer service phone or bring your ID card to the business outlet. If it is your friend's business SMS reminder, he can only cancel it. I don't know which bank's business is, so I can't provide you with a customer service phone number. I only know that ICBC is 95588, CCB is 95533, and other banks have it online. Please check it yourself.