Catalan Dragons have been fined £1,000 for publically criticising the Rugby Football League's disciplinary procedures.
The Dragons were furious with the three-match ban given to centre Zeb Taia last month after he was found guilty of a reckless shoulder charge on St Helens half-back Gareth O'Brien.
Catalan chairman Bernard Guasch says the Dragons are being treated more harshly than other Super League clubs.
He pointing to a four-match suspension imposed on prop Julian Bousquet earlier in the year, and said they would be closely monitoring all future disciplinary cases to highlight their argument.
Now the French club have been ruled to have been in breach of RFL operational rules by questioning the integrity of the sport's disciplinary process.
A RFL spokesman said: "Catalan were found to be guilty of improper conduct under operational rule D1.8 (c) after posting videos claiming they were not treated in the same manner as other RFL member clubs."
Guasch and coach Laurent Frayssinous have also been fined £500 each, £250 of which is suspended until the end of the 2014 season, for publicly questioning the integrity of the disciplinary process following the suspension of Taia.