Roma director Mauro Baldissoni slammed the “grotesque” order to close the stands against Sampdoria and Inter.
The Giallorossi lodged two appeals against the two-game ban on the Curva Sud and Curva Nord, but both were rejected.
The club was penalised for ‘territorial discrimination’ – as anti-Neapolitan chants are punished using the same rules designed to combat racism.
“It is difficult to comment on a situation that I would call grotesque,” Baldissoni told Sky Sport Italia.
“There is a rule that has been active since 1994, but never actually acted upon until this season. The rule is unclear and has been shown to be incoherent, as it punishes in an incomprehensible manner.
“I say this with the pride of a club that has taken a strong position with its fans and that has started several initiatives for fair play. We never cause controversy and our style is not to shout.
“However, we demand urgent answers, because to run a club you need credibility. We will meet with the High Court and see if someone can explain this to us.”