$12.50 is low entry for 10% off for a big shop if Woolies is your thing.
- Unlimited international calls to 22 countries
- eSIM supported
- Telstra network
- 10% discount is capped at $50
Edit: checked 10% off t&c per JV’s comment, looks like it might not be instantly available.
Within 45 days the offer will be active and appear in the Everyday Mobile from Woolworths app.
I think you need to wait > 30 days before you are eligible for the 10% off.