Access to webinars outside the US and Canada is impossible

I tried registering for the Quizlet event, but one field was State/province. 

Since I live in the UK, there are no states (like in the US) or Provinces (like in Canada),

Therefore, I couldn't register (of course, it doesn't accept English counties!

So, it should be made clear that customers not from the US or Canada will have no access to Zoom webinars, events, or anything requiring filling in the State/Province field.

Any help or information you can give me will be appreciated.