Nottingham Forest have made a formal request to the PGMOL for the VAR audio from their Everton defeat on Sunday to be released publicly.
Forest had three separate penalty appeals dismissed by match referee Anthony Taylor during their 2-0 loss, with the on-field decisions endorsed by VAR Stuart Attwell.
The relegation-threatened club then accused Attwell of being a Luton fan, saying they had "warned" the PGMOL before the match over the issue and said the club would "consider its options".
A statement on Monday from Forest said: "Nottingham Forest has today submitted a formal request to the PGMOL to release into the public domain the audio recordings between officials during yesterday's match against Everton at Goodison Park.
"The club has requested this be shared for three key match incidents - Ashley Young's challenge on Giovanni Reyna (24th minute), Ashley Young's handball (44th minute) and Ashley Young's challenge on Callum Hudson-Odoi (56th minute).
"We firmly advocate for the broader football community and supporters to have access to the audio and transcript for full transparency, ensuring the integrity of our sport is upheld."
The Football Association announced it had "formally requested observations" from Forest, boss Nuno Espirito Santo, full-back Neco Williams and referee analyst Mark Clattenburg following their comments.
The Premier League said it would also be investigating the matter, having been "extremely disappointed" to read Forest's post-match comments, adding that it is "never appropriate to improperly question the integrity of match officials".
This high-profile tit for tat continued as Forest responded in kind, calling for the PGMOL to "amend its rule on allegiances to account for contextual rivalries in the
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