For example, they may not be able to produce any proof of e-transaction which the e-trader requires before entertaining any claims. The CPA provides an entirely different remedial scheme for breach of the guarantees which depends on whether the failure in the good is remedial or substantial. In a case of a failure that can be remedied, the supplier may remedy the failure by repairing or replacing the goods or providing a refund where repair or replacement cannot reasonably be carried out (section 42). However, the choice of remedy is not left to the consumer since it needs to be exercised sequentially. The right to reject the good and claim for refund or replacement is only available in cases of substantial failure. The ‘substantial defect’ has been interpreted by the court to include a defect that either exist as a latent defect at the time of purchase or it might result because of an accumulation of more minor defects which appear one after another continuously over a period of time