MYR General Discussion, page-22

This may not help, but it's an extract from the ACCC's website:

Gift cards must be valid for at least 3 years

Gift cards purchased on or after 1 November 2019 must be redeemable for at least 3 years after the day they were supplied or purchased.

The 3-year rule does not apply to gift cards that are:

• able to be reloaded or topped up
• donated for promotional purposes. For example, a business handing out $15 vouchers to passers-by for its grand opening.
• available only for a specified period. For example, performance of a visiting ballet company.
• supplied at a genuine discount. For example, $60 card for a massage valued at $100.
• part of an employee reward scheme
• part of a customer loyalty program
• second-hand gift cards
• part of a temporary marketing promotion. For example, customers buy a certain product from Business A, which provides a $50 voucher to use at Business B.
• supplied to certain charities or government agencies.