Don't bet on betpanda.io - lots of complaints from other users about not paid withdrawals.
Lots of good sportsbooks or casinos to choose from, stay AWAY from them if you care about your money.
Why not post your proof about those complaints? because its worth nothing if you just throw some accusation without presenting anything in their thread.
People provably will go in your side especially if they can see that you are telling the truth and they are bad casino to gamble. For now can't expect anything since people here usually ask proof before wasting their time paying attention on something nonsense here.
Also looking at the discussion of people playing on this casino here it seems that they are fine and didn't encounter those issues you said here.