AFAIK her country, cmiiw Indonesia, doesn't belong to the list of countries banned by sportsbet ToS. Then she doesn't need to hide her IP, she won't face any problem from sportsbet IMO.
Thanks for point this, I just know sportsbet allowed my country. The problem is my country doesn't allow me to access sportbet. this mean I won't waste the money to buy VPN (all clear now) and I don't know if sportsbet allowed user to change the DNS?, if yes I will continue