'If you see a 'Could Not Create Apple ID' or 'Could Not Set Up iCloud' message' click here --> https://support.apple.com/HT210743
See if it is a server issue:
https://www.apple.com/support/systemstatus
If you still have problems:
Contact Apple. Click here --> https://support.apple.com/choose-country-region Select your country, then a product. If you don't see one that handles your issue then keep experimenting with selections until you reach one that gets you a chat session or a telephone call and get the representative to redirect you.
or:
Contact Apple for support and service --> "See a list of Apple phone numbers around the world."
Click here --> https://support.apple.com/HT201232