The troubled Millers, who are in administration for a second time in two years, have been told by the Football League there is a very real danger a proposed new club headed by Stewart will not be allowed to start the new campaign.

In a solicitor's letter dated yesterday, the League raised a number of concerns they insist must be addressed before the transfer of the club's membership from the old company can go ahead.

United's move to the Don Valley Stadium and planned return to Rotherham within a four-year timescale are among the issues raised in the letter, as is the club's business plan plus the settlement in full of the debt to the Football Stadia Improvement Fund for their contribution to the building of the new main stand at Millmoor.

The news has left supporters worried, though chairman Stewart insisted last night it was "business as usual" for the Millers.

He told the Yorkshire Post: "I want to reassure fans that nothing has changed, nothing at all. And that there really is nothing to worry about.

"I was a bit surprised to receive the letter from the League, it is a strange way to do things to me. For instance, a lot of the things they have asked for, they already have. But by next week everything will be sorted out.

"The way I see it this is just another hurdle for us to get over. We want to work with the League to get our share back and all resources are going into making it happen."

Stewart, who has been funding the club in administration, admitted earlier this week that the club's attempt to avoid a points deduction had failed due to it not being possible to strike a deal with creditors.

A failure to exit administration via a Creditors Voluntary Arrangement saw Leeds United docked 15 points a little over a year ago, the League citing an 'exceptional circumstances' provision in their rulebook to transfer the Elland Road club's share to a new company set up by Ken Bates.

In the solicitor's letter sent to Stewart yesterday, the League asked for clarification as to why this clause should also apply in the case of the Millers.

The move to the Don Valley Stadium, the club having quit Millmoor after 101 years over a rent dispute with landlord and former chairman Ken Booth, is also addressed at length with the League concerned that no provision has been made regarding a £750,000 security bond to guarantee the club return to Rotherham by the start of the 2012-13 season.

The League's letter stresses that if their concerns are not addressed then only the old company and not Stewart's proposed new company will be allowed to start the new season, a move that would effectively kill the club.

The letter, signed by the League's solicitor Nick Craig, ends: "Time is short. It is imperative that the new company's application is presented to the board prior to the start of the season and it is in the best possible shape.

"We want to reduce the risk that the board may raise further points which might prevent the issuing of a final decision before the start of the new season."