The text of the letter published on the club's website indicates a number of controversial episodes.
In particular, the representatives of "Rotor" questioned the penalty awarded to the Volgograd team in the 81st minute.
Thanks to the victory over Lokomotiv, the team left the last place in the standings and is now in 15th position, having six points after 12 rounds.
Earlier it was reported that Rotor would file a complaint about the refereeing of the RPL 12th round match with Lokomotiv.