I didn't even have a postal currency card, and suddenly I received a text message from 95580 saying that I had opened a postal savings online bank. What happened?

The question you submitted may be that someone else mistakenly wrote the mobile phone number wrong when handling personal online banking business in the Postal Savings Bank, and wrote it as yours. If you really don't have a personal online banking service in the Postal Savings Bank, you don't need to pay attention to this short message, or go to the postal savings bank outlets near you for enquiries.