27 The $10m xs $10m layer replaced an earlier $10 million in excess of $10 million excess of loss reinsurance treaty written in part by the first and second plaintiffs for the defendant (the Expiring Treaty).
28 Set out below are key events relevant to the writing of the Expiring Treaty, the FAI Policy, the $10m xs $10m layer and the $5m xs $5m and $3m xs $2m layers.
The writing of the Expiring Treaty
29 On 31 December 1997 Ms Margot Rathbone (nee Beyersdorf) of the first plaintiff faxed a placing slip for the Expiring Treaty to Mr Rob Porter of Fleming Insurance Brokers Limited (then reinsurance brokers for the defendant). The placing slip had been stamped by the first and second plaintiffs among others. The Expiring Treaty incepted on 1 January 1998 and was to expire on 31 December 1998.
30 On 28 October 1998 Ms Rathbone signed the treaty wording for the Expiring Treaty on behalf of the first plaintiff.
The writing of the FAI Policy
31 On 23 September 1998 Mr Rodney Adler of FAI notified the Australian Stock Exchange that the Adler family had sold 45 million FAI shares to HIH Winterthur International Holdings Limited (HIH) with a view to HIH acquiring all of the share capital of FAI.
32 On 28 October 1998 Mr Ewen McKay of FAI wrote to Mr James Walker of Aon Professional Services (Aon) asking him, in light of the likely takeover of FAI by HIH, to investigate the options available to the Board of Directors of FAI for ongoing D&O liability run off cover, including the option of a multi-year deal.
33 On 30 October 1998 Ms Karen Ware of Aon wrote to Mr Malcolm Fletcher of the defendant asking him for preliminary comments following FAI's proposed sale and their D&O liability insurance being placed into run-off.
34 On 4 November Mr Walker of Aon wrote to Mr McKay of FAI, stating: "…we have had initial discussions with the current underwriter who had agreed in principle that a "run-off" program for a five year period can be negotiated."
35 On 12 November 1998 and 13 November 1998 correspondence passed between Mr Walker of Aon and Mr Fletcher of the defendant in relation to a proposed 5-year D&O liability run off cover to be written by the defendant for FAI.
36 On 19 November 1998 Mr Fletcher of the defendant faxed to Mr Walker of Aon two proposed placing slips - one for 5-year D&O liability run off policy and one for an annual D&O liability run off policy for 5 years.
37 On 11 December 1998 Mr McKay of FAI wrote to Mr Walker of Aon, stating: "…I can advise that you are instructed to proceed with the placement of Option 1 (i.e. 5 year policy with current insurers)."
38 On 14 December 1998 Mr Walker of Aon sent a copy of Mr McKay's fax to Mr Fletcher of the defendant.
39 On 23 December 1998 Mr Walker of Aon wrote to Mr Fletcher of the defendant in relation to a proposed 7-year D&O liability run off cover to be written by the defendant for FAI.
40 Also on 23 December 1998 Mr Fletcher of the defendant faxed to Mr Walker of Aon a placing slip stamped on behalf of the defendant for the FAI Policy, which was to be for a 7-year period.
41 On 23 February 2000 the policy wording for the FAI Policy was signed on behalf of the defendant. The FAI Policy incepted on 31 May 1999 and was to expire on 31 May 2006.
The writing of the $10m xs $10m layer
42 On 15 December 1998 Mr Fletcher of the defendant wrote to Mr Peter Harmer of Aon Re Worldwide (Aon Re) in relation to the renewal of the Expiring Treaty.
43 On 19 December 1998 Ms Rathbone of the first plaintiff had a discussion with Mr Giles Fox of Aon Re in relation to the renewal of the Expiring Treaty.
44 On 21 December 1998 Mr Fox of Aon Re faxed a copy of Mr Fletcher's letter of 15 December 1998 to Ms Rathbone of the first plaintiff.
45 Also on 21 December 1998 Ms Rathbone of the first plaintiff had a discussion with Mr Peter Backe-Hansen of the first plaintiff in relation to the renewal of the Expiring Treaty.
46 On 22 December 1998 Ms Rathbone faxed a quote for the renewal of the Expiring Treaty to Mr Fox of Aon Re. The quote stated: "Original contracts: Up to three years is acceptable. PINA clause to be amended … Look forward to receiving slip for our signature."
47 Also on 22 December 1998 Mr Fox of Aon Re wrote to Mr Fletcher of the defendant attaching a draft slip.
48 On 23 December 1998 the first plaintiff stamped a placing slip for the $10m xs $10m layer along with a copy of Mr Fletcher's letter of 15 December 1998. The $10m xs $10m layer incepted 1 January 1999 and was to expire on 31 March 2000.
49 Also on 23 December 1998 the second plaintiff stamped a placing slip for the $10m xs $10m layer along with a copy of Mr Fletcher's letter of 15 December 1998 and Ms Rathbone's letter of 22 December 1998.
50 On 29 December 1998 the third plaintiff and on 31 December 1998 the fourth plaintiff stamped the placing slip for the $10m xs $10m layer along with a copy of Mr Fletcher's letter of 15 December 1998.
51 On 14 January 1999 Aon Re sent a cover note to Mr Fletcher of the defendant in relation to the $10m xs $10m layer.
52 On 10 February 1999 Mr Fletcher of the defendant wrote to Mr Fox of Aon Re, stating: "I note that there is no limitations concerning the period of insurance policies issued by GIO and ask that you confirm that we will be covered for policies that are issued for terms in excess of 12 months…"
53 On 15 February 1999 Mr Fox of Aon Re wrote to Mr Fletcher of the defendant, stating: "…I confirm reinsurers have noted and agreed to your request … with regard your need to write original policy periods of 2 or 3 years…"
54 On 16 February 1999 in an internal memorandum Mr Fletcher of the defendant stated: "Treaty coverage is as expiring except that we now have protection for long term policies up to 3 years…"
55 On 18 February 1999 Mr Fletcher of the defendant wrote to Mr Fox of Aon Re, stating: "…if we issue a policy for a 2 or 3 year period … but at the end of the first year, we are asked to "roll forward" the term for another year so as to preserve the concept of a 2 or 3 year period, what cover do we have under the current treaty for the "roll forward" period?
56 On 19 April 1999 Mr Fox of Aon Re wrote to Mr Fletcher of the defendant, stating: "…I can confirm that your treaties provide reinsurance to cover original policy periods of up to three years."
The writing of the $5m xs $5m and $3m xs $2m layers
57 On 1 June 1999, 4 June 1999 and 21 June 1999 correspondence passed between Mr Peter Burtenshaw of the defendant (who had replaced Mr Fletcher) and Mr Paul Clarke and Mr Michael Ward of Benfield Grieg (Australia) Pty Limited (Benfield) in relation to the possibility of expanding the defendant's excess of loss reinsurance coverage.
58 On 29 June 1999 Mr Backe-Hansen of the first plaintiff had a discussion with Mr Clarke and Mr Ward of Benfield in relation to the possibility of the first plaintiff providing excess of loss reinsurance coverage to the defendant below the existing $10m xs $10m layer.
59 On 5 July 1999 Mr Backe-Hansen of the first plaintiff sent a quote to Mr Ward of Benfield for a number of proposed layers of reinsurance for the defendant below the existing $10m xs $10m layer.
60 On 16 August 1999 placing slips for 80% of the $5m xs $5m and $3m xs $2m layers were stamped on behalf of the first, second and sixth plaintiffs. The $5m xs $5m and $3m xs $2m layers incepted on 1 January 1999 and were to expire on 31 March 2000.
61 On 21 September 1999 Benfield sent cover notes to the defendant in relation to the $5m xs $5m and $3m xs $2m layers.
62 On 23 December 1999 Mr Ward of Benfield wrote to Mr Backe-Hansen of the first plaintiff in relation to a concern raised by the defendant with the exclusion list under the $5m xs $5m and $3m xs $2m layers.
63 On 1 March 2000 placing slips for the remaining 20% of the $5m xs $5m and $3m xs $2m layers were stamped on behalf of the fifth plaintiff.
64 On 2 March 2000 Benfield sent revised cover notes to the defendant in relation to the $5m xs $5m and $3m xs $2m layers.
The plaintiffs' case
65 The plaintiffs' central proposition is that the broad error of law in the Award is that, having found in favour of the plaintiffs on the existence of the agreement that was the central issue at the hearing, the reasoning and conclusion in relation to Section 18B(1) of the Insurance Act have the effect of inverting the obvious purpose of that section and produce an unreasonable result.
Section 18 (B) of the Insurance Act 1902
66 This section is in the following terms:
18B Limitation on exclusion clauses