"The argument advanced on behalf of the Sibbles (the
purchasers) was that the purported rescission by Highfern
(the vendor) was pursuant to cl. 11 of the contract, which
conferred upon Highfern a right to rescind for failure
on the part of the Sibbles to pay moneys due under the
contract. The further particulars of Highfern's statement
of claim, so the argument continued, established that the
breach of contract relied upon by Highfern for the purposes
of rescission was the Sibbles' failure to pay moneys due
under the contract. And before a contract can be determined
for the non-payment of moneys due under it, so it was said,
a notice under s. 72 must be given.
That argument, in our view, adopts too narrow an
approach. The first thing to be noticed is that the power
of termination given by cl. 11 of the contract may be
exercised not only for default in the payment of sums due,
but also for failure to comply with any agreement contained
in the contract. Then it is to be observed that the letter
dated 20 November 1984 specified as the basis for rescission
the continuing failure of the Sibbles to complete the
contract. The allegation of rescission contained in the
amended pleadings was made by reference to the letter dated
20 November 1984. That letter in turn referred to an
earlier letter dated 5 November 1984 alleging a failure on
the part of the Sibbles to fulfil their obligations and a
refusal to complete settlement of the contract. Putting
to one side the further particulars, it is clear enough
that what Highfern was relying upon as the basis for its
rescission of the contract was not the failure to pay any
instalment or sum of money due under the contract, but the
Sibbles' repudiation of, or refusal to be bound by, the
contract. Default in the payment of moneys constituted
evidence of this, but it was not the only evidence by any
means of the Sibbles' rejection of any further obligations
on their part."