What is side bet and how can we do this anyone can give information regarding this as I am reading many side bets are going here.
I have no sportsbet.io account as it's not allowed in our country so can I use VPN is this ok as well.
A sidebet is when two (or more) people agree to take on some kind of a bet. It can be a bet on the outcome of a certain round, a bet on the outcome of the season... Whatever two people agree to bet on can be a sidebet. It's not official, but for example, if you agree with someone to have a sidebet on the outcome of a certain round, Trofo or cryptofrka will add it to the spreadsheet.
As for the Sportsbet account, I will let Trofo or cryptofrka answer that. But I think that you will need an account to receive a freebet (if you win one).