1. Usually you don't need to change the number to change the package. Because of the different types of packages, the changes are different. Eligible package users who have no abnormal status such as arrears and blacklists and are online normally can log in to the online business hall with their mobile phone numbers and service passwords. Click "self-service" > "handling" > "package handling" on the home page, select the package to be changed and confirm. In addition, you can also log in to the mobile phone business hall client, click Services > Handling > Package Change at the bottom, select the package to be changed, and make changes according to the page prompts.
2. According to the information you provided, if you are using the iQiyi Wangxiao Card of Liaoning Unicom, you cannot switch back to the original package after the card package is transferred out. For details, please contact Unicom's manual customer service for consultation. The actual situation is subject to local policies.