Please give a legit explanation why team Thailand lost two points and does not allow substitutions s

I think this game Thailand team has received an unfair judgement ,everyone in the world can see it not only Japanese or Thai people.

For me as a Thai citizen I would like the FIVB to come out and show up your spirit as a organizing committee to prove us why did the referee has made such an unclear decision in the game without giving us a good explanation on his judgement. As I perceived Thailand'coach did not even spoke the impolite or express the bad behavior at all. He did follow all the rules and all the athletes on both team have played their best game. I believe that it is strongly important to your organisation to take this as an immediately action to find out the truth in order to maintain your organisation's reputation to the world. If their is a dishonest be hide the game. Please prove us by your action and give us back the right judgement.

Lastly. I believe that the great victory consist of the good player and good judgement. Please prove us wrong.