At Myer
"Birthday & Anniversary Rewards" listed among included member benefits on the MYER one program page; T&C s4.5: "Rewards are valid for one year from the issue date".
Perkroo lists the perks the memberships you already hold include — sorted by what’s nearest to you.
Perkroo is an independent Australian app. Myer are named for identification only — Perkroo is not affiliated with, endorsed by, or partnered with them. Offers change at the provider’s discretion; check the linked page before relying on one.