In what situation could a consumer NOT claim under the Consumer Guarantees Act?

Under the Consumer Guarantees Act, consumers are entitled to certain guarantees regarding the quality and fitness for purpose of goods and services they purchase. If goods are tampered with after purchase, the integrity of the goods is compromised, which can invalidate the guarantees provided under the Act. This means that the consumer would not be able to claim against a supplier for issues arising from the tampering, as the tampered goods do not meet the conditions or performance standards initially promised by the seller.

In contrast, using goods properly, purchasing perishable goods, and buying items on sale typically does not affect the guarantees. When a consumer uses goods as intended, they remain eligible for claims if those goods fail to meet the guarantees. Perishable goods inherently have a limited timeframe for quality assurance, but that does not remove the consumer's right to claim under the Act if the goods were faulty when sold. Similarly, purchasing items on sale does not exclude consumers from protection under the Act; they still maintain the same rights regarding the guarantees of those goods.