Optus introduces data rollover to prepaid mobile plans - Tech Guide
Optus Prepaid Epic Value Plan: $180 for $120 (33% Discount), 60GB Data with Unlmt Calls, 365 Days (Limit 1 Per Customer) | Phone plans, How to plan, Data
Optus $1 a day prepaid plans are good, but confusing | WhistleOut
Alex Choros on LinkedIn: Optus prepaid plans are getting speed limits in July