Under the heading "Reference Schedule Item 4 Contractual Rebate" appeared the words which were included under that heading in the 31 March 1999 variation letter which amended the Supply Agreement. Under the heading "Reference Schedule Item 5 Freight" appeared the words which were reproduced under that heading in the 31 March variation letter.
80 However, the 15 March letter went on to give "typical examples of Ryledar's delivered prices for each Zone" . Those examples did not appear in the 31 March variation letter. The examples given are the same as had been included in Mr Magar's facsimile of 9 February 1999, i.e., Wagga, Queanbeyan and Coffs Harbour. The examples included in each case a deduction from the List Price of the 6¢ rebate although, as I have noted, the three towns were outside the zone for the Contractual Rebate proposed in the amended Item 4.
81 On 31 March 1999, Mr Hobbs sent the proposed letter of variation of the Supply Agreement, including the changes sought by Ryledar to Item 4 of the Reference Schedule but not including in the letter any example of how delivered prices for each zone would be calculated.
82 On 13 April 1999, Mr Magar sent a further facsimile to Mr Hobbs, drafted by Mr Beckwith, requesting that Mr Hobbs confirm that the examples of Ryledar's delivered prices for each zone "are correct as demonstrated in our letter dated 15/3/99" . Mr Hobbs responded by sending by facsimile his letter of 24 February 1999. Mr Magar says that he executed the 31 March 1999 letter of variation shortly after 13 April 1999.
83 Between 13 April 1999 and 6 July 2000, Euphoric applied the 6¢ Contractual Rebate to sales to all Ryledar's country sites which opened during that time, whether those sites appeared within the area defined in Item 4 or not. In his witness statement, Mr Hobbs said that if he had been aware that Euphoric was allowing the 6¢ rebate contrary to the terms of the Supply Agreement he would have reviewed the practice. However, in cross examination, Mr Hobbs conceded that he probably would have continued the practice of allowing the rebate to all of Ryledar's country locations, for commercial reasons.
84 On 6 July 2000, Mr Hobbs' successor, Mr Rodgers, confirmed to Ryledar that from then on Euphoric would not allow the 6¢ rebate for sales outside the area defined in Item 4 of the Supply Agreement, as varied by the 31 March 1999 letter.
85 In support of its contention that by 31 March 1999 the parties had arrived at a common intention that the 6¢ rebate would apply to sales to all of Ryledar's country locations throughout New South Wales, Ryledar relies heavily upon the worked examples of pricing which appeared in the correspondence between the parties leading up to the variation letter, some of those examples emanating from Mr Hobbs.
86 The great difficulty with this submission is that those examples are manifestly at odds with the clear wording of revised Item 4 of the Reference Schedule, which Ryledar itself had put forward. If it had really been the intention of Ryledar to propose that the 6¢ rebate be allowable for sales to all its country locations in New South Wales, nothing would have been simpler than to say so in those very words. Instead, a carefully demarcated rebate zone was proposed in amended Item 4, a quick reading of which would have left the reader in no doubt that the rebate would be applicable to sales within that zone and not otherwise.
87 One possible explanation for the discrepancy between the worked examples and the words of the amended Item 4 is that Ryledar suspected that, if it asked outright that the 6¢ rebate be applied to all of its country locations, Euphoric would refuse; Ryledar therefore disingenuously included in its correspondence pricing examples showing the rebate as allowed to sales outside the defined area, hoping thereby to gain Euphoric's unwitting acceptance of the examples and, consequently, a basis for arguing later that Euphoric had agreed to allow the rebate throughout New South Wales, notwithstanding the wording of Item 4.
88 This suggestion was put directly to Mr Beckwith, who was the author of Ryledar's relevant correspondence with Euphoric, commencing with the letter of 11 August 1998. Mr Beckwith denied the suggestion. However, as I shall explain, I did not find at all convincing his explanation as to why he had thought it necessary to seek Mr Hobbs' confirmation of pricing examples pursuant to an agreement which, he said, was quite clear in its meaning.
89 Mr Beckwith said that the Supply Agreement, prior to the amendment by the March 1999 letter, was clear in its terms that the 6¢ rebate applied to sales at all Ryledar sites throughout country New South Wales. However, he said that in drafting the letter of 11 August setting out pricing examples showing the 6¢ rebate as applied to sales outside the areas defined in Item 4, he wanted to gain Mr Hobbs' confirmation that the rebate applied throughout New South Wales as a matter of "professional wisdom … it is just one of those things as being part of the commercial world" .
90 Mr Beckwith was then taken to the words which he had drafted under the heading "6 CPL Contractual Rebate Areas" in the proposal sent to Mr Hobbs by Ryledar under cover of its facsimile of 13 January 1999. Mr Beckwith gave this evidence:
"Q: In paragraph 2 of the document on page 3.222 [should read 2.332] you specifically defined the areas in which the contractual rebate would apply, didn't you?
A: If you read it as per the original agreement, that is true but that is not what the understanding was."