If a buyer reported a seller for some reason what will happen to that seller
Fiverr can closed seller account if complain was strong. Otherwise Fiverr Give him a warning.
Your question is far too vague for anyone to be able to answer.
Reported for what? Who was at fault?
If the seller is reported for a reason, they will most likely get a warning and/or have their account disabled.
If the seller has done nothing wrong, either a) nothing will happen; b) they will get a warning and/or have their account disabled if a CS agent doesn’t care enough to look into the situation. Then the seller will have to contact CS with proof that they’ve done nothing wrong.
If a buyer report on a seller you may getting ban or restrict your account if the complain are too strong.