Multi-accounting enables people to get giveaways & free bets etc multiple times. I’m pretty sure people could cheat at stuff like the poker nights they have. You could be playing with 5 or 6 accounts & clean up? I’ve seen people moaning about it before.
Agreed.
It's becoming a grey area where no one can be proven fully guilty or innocent - if the user would have bet in poker or claiming bonuses then surely he should be banned and that's the end of story - but if he genuinely placed genuine bets (over/under soccer) and didn't try to cheat or circumvent the system (like he claims) then surely there's gotta be a leeway here, or at least some proper settlement - they can both keep it anonymous and don't share how they settle it but leaving the case unsettled and the OP is not willing to accept their offer of getting only his deposit back - then without Sportsbet.io taking any step further - they would only hurt their reputation short and long term.
The best thing to do in such things is common sense, and common sense says a settlement is required (or alternatively posting proofs which seems to be difficult).