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OnePass Mobile 365 Days 5G Plans $159 (Was $225) at TopCashback AU

Posted 11/12/2026

OnePass Mobile 365 Days 5G Plans $159 (Was $225) at TopCashback AU

MobileCashbackPrepaid Mobile Plan

You can score a $20 cashback boost on these discounted 1-year OnePass Mobile plans, which run on the Optus 5G network.

350GB plan drops to $159 (was $225) — about $11.58 a month after cashback
550GB plan drops to $189 (was $275) — roughly $14.08 a month
Bonus data and a free OnePass membership come included
Just activate your SIM within 30 days and keep the plan connected for at least 75 days to qualify

These are some of the cheapest big-data 1-year plans going around right now, though they renew at $225 for 250GB and $275 for 340GB.

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