As everyone has noticed, the Optus $30 sims are on special quite often for $10 so i stack them up. Kindly enough, optus lets you do a sim swap so you don't have to port in and out with different providers.
Recently their starter kits have "Activate within 30 days of purchase". I spoke to them on live chat and they said the credit expires after 30 days but the sim expires after 6 months and that its "always" been like this. However, i have activated a few starter kits I bought a few months ago and they still had credit.
Can anyone confirm if the credit actually expires after 30 days in the new starter kits they are selling?
There are several dates here:
SIM expiry date, usually far in the future, unless pack is short-dated. Some SIMs don't expire, e.g. Vodafone.
Credit expiry date, which depends on how many days the plan gives you.
Number expiry date, usually 6 months after activation or last recharge.
Your rep seems to talking about the last 2.
To this Optus has started adding activation timeout, which seems to be their way of countering stockpiling. The SIM autoactivates within 30 days pf purchase unless activated sooner. It depends on whether they can get hold of the control number at purchase time. For supermarkets, they can. Also note that SIM packs are usually classified as gift cards by supermarkets and earn no points.