Campaigners fighting to restore Birmingham's Moseley Road Baths will submit a 22-page report on the future of the historic pool to city councillors today.
Friends of Moseley Road Baths, dressed as Father Christmas, hope to lobby Coun Ray Hasall, cabinet member for leisure, sport and culture, and the leader Coun Mike Whitby to discuss the site's future.
A £300,000 consultants' report, commissioned by Birmingham City Council, apparently puts the cost of restoring the Victorian baths at between £17 million and £30 million.
But Russ Spring, chairman of the campaign group, told The Birmingham Post that he had been "lead to believe it could as low as £12 million".
He said: "The council have not let us see that report, despite assuring us it would be put out
into the public domain in the autumn. It's now December and we've had no sight of that report, but if what I've been told is true, that the costs could be nearer £12 million, then why are they trying to inflate the cost of this project?"
Coun Martin Mullaney (Lib Dem, Moseley and Kings Heath), who chairs the Moseley Road Baths Working Party made a similar claim in October, that he had been prevented by the council from seeing the consultants' report.
He also voiced fears that the dossier would overemphasise the need for modernisation, which could result in an overinflated bill.
The council spent £1 million on urgent repairs between October 2004 and October 2005, during which time the baths remained closed. The smaller, less ornate of the two pools reopened to the public last year.
Mr Spring said: "After repeated requests to meet with Coun Hassall and Coun Whitby to handover our report and gaining no response, we are beginning to feel that they aren't keen to hear what we have to say.
"We have enlisted the help of Father Christmas to deliver these presents to the councillors in anticipation that no-one refuses a present off him.
"It's a sad situation when so much work has gone into creating this report all on a voluntary basis by local people to try and provide input into the decision over the future of the baths."
Friends of Moseley Road Baths are recommending that some of the 'slipper baths' be converted into therapy suites, with plans for a museum to be curated with Balsall Heath Historical Society, a health advice centre and cafe.
Mr Spring added: "Melville and Partners were commissioned by the council to submit a report, which it received in August.
"We've requested a copy of that document but have just been told we're not allowed to see it yet. We were told it would be out in the autumn, but it's now December and still we've heard nothing.
"So when we go to the council tomorrow it will be a case of 'Here's our report, now can we see yours?'"
Last night a Birmingham City Council spokesperson said: "The council, together with Sport England, are working on a sports facilities masterplan for the next 25 years.
"Therefore, we are not in a position to discuss individual locations prior to the outcome of this work."
The Victorian Society have described Moseley Road Baths as an "oustanding" building which should be safeguarded.
It calls on the future of the baths, which are listed as one of the ten most endagered buildings in the country, to be saved for use by the local community.