Hi! 😊 See my post just above yours, I've linked to the main online offer links and also if you have a Lenovo device and Vantage you can get it through there alternatively. However, just checking as looks like you have China as your country in your profile - are you physically based in China? From our core markets here on the community, the offer is available only for Italy, Finland, Sweden and Spain right now!
Here's the full list of applicable countries:
Brazil, Mexico, USA, Canada, Australia, Japan, France, Germany, Italy, Spain, United Kingdom, Argentina, Chile, Colombia, Costa Rica, Dominican Republic, Ecuador, El Salvador, Guatemala, Panama, Peru, New Zealand, Bulgaria, Czech Republic, Estonia, Hungary, Latvia, Lithuania, Poland, Slovakia, Austria, Belgium, Finland, Greece, Ireland, Netherlands, Portugal, Sweden