Im a bit hesitant about buying anything online . I want this https://www.optus.com.au/prepaid/sim-plans/300
but what if the sim card never arrives in your letterbox ??
What proof do we have that we made the purchase ??
What if the the sim card can not activate after u receive it ??
Would Optus give us our money back ???
1 call optus
2 it's called a receipt , invoice, purchase summary etc.
3 call optus
4 depends , but probably not , just send out a new sim.