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Boost Mobile: $10 Cashback on 125GB 28-Day Prepaid SIM for $17 (Was $49) @ TopCashback AU
Posted 4/13/2026

Boost Mobile: $10 Cashback on 125GB 28-Day Prepaid SIM for $17 (Was $49) @ TopCashback AU

Mobile5GBoost Mobile

You can grab a massive 125GB of 5G data for effectively just $7 by combining Boost’s price drop to $17 with a $10 cashback offer from TopCashback!

  • Huge Value: Get 125GB of data for 28 days for a fraction of the usual $49 price.
  • TopCashback Bonus: Pay $17 upfront and claim $10 back, making this the cheapest way to jump on the Telstra 5G network.
  • Pro Tip: If you're an existing Boost user, you can still snag this by porting your number to another provider first and then back to Boost.

Just make sure to follow the tracking tips—like disabling ad-blockers and using mobile data—to ensure your cashback tracks perfectly!

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