Josep Maria Bartomeu will send a formal complaint to the Royal Spanish Football Federation (RFEF) about the use of VAR in Barcelona's 2-2 draw at Real Sociedad on Saturday.
SPORT have learned that the Barça president, angered by what he saw on the pitch at Anoeta, will ask for an explanation from the RFEF.
Two key moments in the game both went against Barça, above all the decision not to give Gerard Pique a late penalty when he appeared to be pulled down in the box.
Referee Alberola Rojas didn't even go to the VAR for a second opinion, which has provoked disappointment at Barcelona. He had earlier awarded La Real a spot-kick for a similar foul.