Yeah - You at least got your deposit back. What more can you ask for here, at least you didn't lose it all and maybe you got cheated, maybe you didn't, but this case is closed as far as we are concerned I think. Cheers and avoid that site from now on obviously. I'm sure there are better/safer ones, but not a big gambler anymore myself. 
Why do you think that my case is closed? Sportsbet.io did provide any evidence of multi-accounting? I chose a website from the list of trusted ones from SportsBookReview, and after this they can just send deposit back to a winner and just close the case? Sounds ridiculous.