2 By affidavit sworn 6 September 1999 the first named second defendant deposed to the essential facts relevant to the matter. They are that the plaintiff has sued the defendants for the sum of $2,916,770.89, which sum is alleged to be secured by several securities including mortgages, equitable charges and interlocking guarantees provided by each of the defendants. The sixth defendant is alleged to have provided an equitable charge over all of its property including the property at 69 The Esplanade South Perth ("the property") in or about the month of November 1993 which charge secured the sum of $6,079,400. The plaintiff's caveat over the property is said by the first named second defendant to be "for the value of $6,079,000", although in point of fact the caveat claims an interest in the property by virtue of "an Equitable Mortgage made 24 November 1993 between the Caveator as mortgagee and the Registered Proprietor as mortgagor stamped to secure $6,079,400". The first named second defendant claims to have repaid to the plaintiff in excess of $4 million and contends that "the quantum claimed in the plaintiff's caveat is therefore incorrect". The validity of a number of equitable charges and mortgages, including the charge described as "the Selec Charge" is being challenged in the proceedings in this Court on the basis that they were procured under "economic duress and unconscionable conduct on the part of the plaintiff, and alternatively that they lacked corporate benefit".