How to charge for Unicom's port number transfer?

At present, China Unicom does not charge service usage fees temporarily. Please don't believe any behavior that requires you to improve your information, bind your bank card and charge related fees through unknown phone calls, links, text messages, etc. The information improvement of port number transfer is only carried out in the official channels designated by China Unicom.

Warm reminder: Please don't provide the verification code easily, in case you are deceived.