Well it depends on what laws and countries are involved. For instance I live in the state of New Jersey, USA
I am not allowed to join betfury and bet from the state of New Jersey. Other USA states do allow it.
Technically, you could leave NJ state lines and then bet on Betfury. US gambling laws only restrict access to betting platforms when you are within state lines if I am not mistaken.
Maybe the restrictions differ from state to state, but I think that first of all, you should be guided by what is written in the ToS on Betfury's website. It is clearly written there that Betfury doesn't allow the opening or use of accounts for clients residing in certain jurisdictions, including the United States.