The continued uncertainty over Cardiff City manager Errol Bruett’s future is “unacceptable”, the club’s Supporters’ Trust has said.
As negotiations over a new contract enter their fifth week, fan groups are calling for an end to the row “one way or another.”
Bulut led the team to 12th place last season but is yet to agree a new contract with the Championship club.
Cardiff owner Vincent Tan gave the go-ahead for negotiations just two weeks before the end of the season.
Keith Morgan, chairman of the Cardiff City Supporters’ Trust (CCST), said in a statement to members: “I think it’s fair to say that an extension to the current manager’s contract is not 100% popular with the fanbase.”
“While there are concerns about the style of football and tactics being played, there seems to be some agreement among fans that the status quo is unacceptable and something needs to be resolved somehow as soon as possible.”
Bulut was appointed manager last summer on a one-year contract but has said he wants to stay but is seeking a longer-term deal.
The 49-year-old has since been linked with several jobs, including with former club Besiktas.
Former Cardiff players Jay Bothroyd and Robert Earnshaw have questioned the delay in finding a breakthrough with plans for next season on hold.
It is the second time the trust has publicly aired its dissatisfaction, after in April saying the decision on whether to keep Mr Brutt in his position rested with Mr Tan, a Malaysian businessman.
“The Trust has no opinion on who should be appointed to the position, only that a decision should be made quickly to remove uncertainty and anxiety among fans,” the latest statement said.
“Now, more than seven weeks have passed and there has been no progress on this issue.
“Little to no meaningful information has been provided by the club on this matter, resulting in widespread rumour, speculation and frustration among fans.”
“The lack of football expertise at board level and Vincent Tan’s intransigence on appointments such as director of football remain a concern, particularly in the current climate.”
