Worcester director of rugby Dean Ryan was left fuming with the officials after his side fell short of defeating Bath at Sixways.
The Warriors feel 14-16 to struggling Bath but Ryan felt they missed out on a 'clear' penalty try from JP Doyle after falling to a tenth Premiership loss of the season.
"I'm astounded that we weren't awarded a penalty try right at the end as everyone saw Ross Batty deliberately knock-on in front of the posts to stop a GJ Van Velze try," Ryan said.
"We had the dominant scrum throughout and yet we never picked up a single penalty.
"We can take the normal rub of the green but we are always on the wrong end of the refereeing decisions and we need to be 10 points better than the opposition every week if we have any chance of winning."
The Worcester boss went to threaten to release information about the performance of referees after suggesting his squad were not being given a fair opportunity by the officials.
"The data in reports, which is prepared by the referees themselves, show us to be the worst refereed group in the Premiership," added Ryan.
"Two years ago, when we were relegated, we were at the bottom of the table and Newcastle at the top.
"This season we are again at the bottom and the table shows that more refereeing errors are made against us than any other side.
"I have raised this issue continuously with the Premiership Rugby referees department over the past two years to no avail and I now feel these reports should be made public."