Derek McInnes has expressed his anger over refereeing performances after the introduction of VAR.
The Kilmarnock boss is still fuming after his side were denied a stonewall penalty when St Johnstone's Andrew Considine clearly handled the ball in the area during Saturday's 1-1 draw.
And with countless VAR calls going against Killie this season, McInnes feels it's time for change and has called on the refereeing department to "up their game".
The Rugby Park boss told Killie TV: "I think it was incumbent on the club to do that, we feel really hard done to.
"We are paying a lot of money for the technology, I was a big champion of VAR and all the managers got behind it.
"We wanted to help referees, we want the league to be as modern as possible and make those improvements.
"Other than the offside law there is still the usual debates, it's people's perceptions of incidents that need to change.
"I had another conversation with the refereeing department on Monday, but I don't want apologies, I am fed up getting them.
"I want fairness, I want competence, I want people making the right decisions, not just for my team but for everyone.
"I feel that we were so harshly treated at the weekend and it's not the first time, we are in danger of referees getting to used to doing a game with VAR there now, we need get back to having good refereeing decisions there and then.
"The referee on Saturday should see that it was a clear handball from [Andrew] Considine, that should be seen there and then without relying on VAR.
"We have been so badly let down, I am so angry and it's time that the refereeing department up their game and start justifying why there was this need for VAR to come in."