Dave King, the Rangers director, has lodged a £20m creditor's claim with Duff & Phelps, and has urged all creditors to reject the Company Voluntary Arrangement proposal funded by Charles Green's consortium.

King has also called upon season-ticket holders not to renew until there has been "full disclosure as to what has truly been going on behind the scenes".

King, the club's second- largest shareholder, has urged all Rangers fans not to support the consortium because "it is clear from the CVA proposal that Mr Green intends to repeat [Craig] Whyte's strategy of using season-ticket sales to fund the club".

King's statement was a strongly worded criticism of the club's administrators and Green, whose £8.5m bid is in the form of a loan, at 8% interest. King also repeated his claim that Whyte verbally agreed to give him first option on the sale of his majority shareholding. King's claim to be a creditor is based on the £20m stake he bought in the club under Sir David Murray.

"I am opposing the CVA and urge all loyal fans to do the same," King said. "We don't want to be back in a similar situation next season. I advised Duff & Phelps I was making a claim against the club based on the deliberate non-disclosure by David Murray of transactions that he had committed to on behalf of the club that were both risky and to the sole advantage of the Murray Group."

King retains the trust of most Rangers fans, despite the South African Revenue Service seeking unpaid taxes of 2.7bn rand (around £227m). As a result, he cannot make his own bid to the buy the club. Green responded to his statement by saying, "provision has been made for working capital that does not rely on season-ticket sales any more than would be part of normal operations. To suggest otherwise is scurrilous and scaremongering".

Duff and Phelps also refuted King's claims, with Paul Clark adding: "We have received a letter of claim from Mr King's solicitors which contains a number of broad and unsupported allegations concerning matters which took place some 10 years ago. The claims are neither accepted by the club nor have they been adjudicated by a court. We have written to his solicitors to ask them to provide evidence to support the claim, as all creditors are required to do."

Whyte reiterated his own support for Green's consortium yesterday, having agreed to sell his 85% shareholding to them for £2. He added that he is considering suing the Scottish Football Association for defamation after they charged him with bringing the game into disrepute for not paying VAT or PAYE, fined him £200,000, and banned him from Scottish football for life.

"I'm 100% behind the CVA," Whyte said. "My shares will form part of the consortium's shareholding and after that I will focus on other activities. I did what needed to be done, unpopular as it was. People have conveniently forgotten the state Rangers were in at that time.

"I will be looking at legal options against the SFA. They have a lot to answer for with their defamatory statements about me. Scottish football's regulators are inept and have showed themselves up. But they have no jurisdiction over me."

The Rangers Fans Fighting Fund also revealed that they received an unequivocal guarantee from Green during their meeting with him last Wednesday that his consortium will not do any sale and leaseback deals on the club's assets. The Herald understands at least one of the investors in the consortium considers such property deals as the ultimate safeguard of their money.

"The RFFF is able to announce that it secured a commitment from Charles Green that he and his consortium will not be mortgaging nor disposing of any of the property assets of Rangers Football Club plc," the fans group said in a statement. "There will be no arrangement whereby the football club will be required to pay any rental/leasing costs for the use of the property assets now or in the future."

It also emerged yesterday that Duff & Phelps have yet to provide police with all the required documentation relating to Whyte's takeover, a month after being accused of dragging their heels over requests for information and Strathclyde Police Chief Constable Steve House told members of his governing body that he was not holding out for any of the £50,000 the force is due from the club from any CVA.

Senior police sources say there is "a fair amount of heel kicking" within the force and that the investigation has stagnated. The source also said that Duff & Phelps had prioritised its civil action against Whyte's lawyers, Collyer Bristow, but added that as the administrator's were court appointed they were duty-bound to provide the information.

"We are still waiting for extra detail from the auditors to fully satisfy ourselves as to what's happened," Mr House said.