Can't register my latest Rog 6D ultimate on Asus accounts my product page

[PJang]

Model Name: CN_AI2203_B
After enter my SN and purchase date, submit button not clickable. I checked SN number, tried to changed number 1 to I, 0 to O randomly but still the same

[FunBike31]

Model name: CN_AI2203_B
CN version!, I could be wrong because it's really a filthy mess, Asus is ASUS but ASUS Tencent is not ASUS for all services.
So, if I'm right, you are Chinese, you keep CN firmware and you benefit from services and after sales on this site
https://rog.asus.com.cn/phones/rog-phone-6d-ultimate-model/
 and recording
https://acc-account.asus.com.cn/Account/Login?resumeUrl=%2Fconnect%2Fauthorize%2Fcallback%3Fclient_i... %252Fcallback.aspx%26response_type%3Did_token%2520token%26scope%3Dopenid%2520profile%2520DefaultApi%26state%3D2d4a2d6767ae422ea5dd52981daf7f0d%26nonce%3D6cf9c61dc9d44f11961fb18085a
The discussion is here
https://zentalk.asus.com/zh/categories/rog6d-tw

If you are not Chinese and do not live there it is as if you bought a Samsung product and tried to register it, to have support and warranty on Apple for this Samsung product