Even if there’s no proof with regards to this one, still Roobet have to answer this but since OP is not active and I can’t see Roobet representative here it left us guessing for what happened on this account. Maybe there’s an error or what that’a why the bet is voided but still its better to answer this. Maybe we can expect a lot of this if this left unanswered. Well, its possible that Competitors might doing this but to protect the sight, the support team must ensure that they are still doing their best to provide quality service, so gamblers can assure that Roobet is still on track.
If you look at other posts from those who made this accusations, you will find that Roobet has already answered why his bet was vioded, there is a screenshot of the conversation regarding the cause of this voided bet, the sportsbook provider refunded all funds because there was an error from the provider so I think the problem is on the provider not roobet.