Cannot create a TheSims 3 account on the website.

vaanyan_​  I really don't know then, I'm sorry.  I did ask around to see if there was anything on the EA side that might explain the issue but came up empty.

The only other suggestion I can make here is that if you have a friend or family member, preferably in a different region, who you'd trust to make the account for you, it's worth asking them to try.