The postal staff sent me a message saying that I didn't answer the phone many times and asked me to call this number to verify 0 10580925 17, but why?

If you call a person directly and he doesn't answer, why don't you send him another text message and he will pay attention? Think about it! In addition, if the receiver does not answer the phone, it is not within the jurisdiction of the postal service. It is often the system that sent you your mobile phone. How can the post office reply to the message? However, if someone mails you something, your contact number is on the mailing list. Maybe the postal service calls you. You may not hear it every time, so you don't answer it. This will send you a text message again. If so, you can ask your post office instead of calling there. It may be a scam, as the two upstairs said. As long as you call later, your phone bill may be gone.