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Earlier offer
Optus: $80 Cashback on 365 Days 300GB Prepaid Plan for $199 (Ongoing $350) @ ShopBack
Posted 9/23/2026

Optus: $80 Cashback on 365 Days 300GB Prepaid Plan for $199 (Ongoing $350) @ ShopBack

MobileOptusPrepaid Mobile Plan

You can score $80 cashback when you grab this Optus 365-day prepaid plan for $199 (normally $350) through ShopBack — that's 300GB of data for the whole year!

  • Just $119 effective after cashback, working out to under $10/month
  • Reports show cashback tracks within 30 minutes
  • Available as physical SIM or e-SIM, but you must purchase online and activate within 28 days
  • Heads up: keep your service active for 90 days post-activation to secure the cashback

This one's for new activations only, so if you're after a cheap year of data, don't sleep on it!

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