Castres chairman blasts French chiefs
The two sides were supposed to play on March 18 but the match was postponed as Stade's players were on strike over a proposed merger with their Parisian rivals Racing 92 which fell through.
"We still don't know if our match against Stade Francais will be played or not," moaned Revol in a letter to the French league (LNR) and federation (FFR).
"This unprecedented situation cannot persist," added Revol, who implored rugby officials to find a solution "as quickly as possible".
"Our team needs to be treated with respect as it wants to prepare with a fixed calendar like all the other Top 14 sides."
Castres are currently fifth in the Top 14 and in the thick of the battle to secure a top six finish and play-off berth.
The LNR wants to rearrange the postponed fixture - and Racing's clash with Montpellier, which was also called off - but the FFR disagrees, which has left an impasse with the four teams unsure when or if those matches will be played.
Agence France-Presse