Newcastle United Supporters' Trust are seeking answers after the collapse of the Saudi-backed takeover bid.
The protracted saga led to PCP Capital Partners, the Reuben brothers and Saudi Arabia's Public Investment Fund withdrawing their offer for the Magpies on Thursday.
The Evening Chronicle reports an email update to NUST members reads: "For the hopes of hundreds of thousands of supporters to be dashed in the manner they have is wrong.
"We are still in the dark about why the Premier League did not approve of the proposed takeover of Newcastle United.
"The League had 17 weeks to make a decision but made none. For supporters to be kept deliberately uninformed in a process that affects us more than any other is a scandal and things must change.
"To be clear there would be no proposed takeover without you, the supporters. There would be no Premier League and no football clubs without you, the supporters.
"We need answers and as a board, the Trust is committed to trying to get answers."