Optus has expanded its $5 Daily Roaming plan, shifting 23 new countries to Zone 1 for affordable international roaming.Travelers to popular destinations like Jamaica, Bermuda, and Trinidad and Tobago can now enjoy low-cost roaming.The $5 Daily Roaming add-on includes 5GB of data, 24-hour validity, and can be easily activated via the My Optus app.Optus users will receive usage alerts and be charged $5 for 5GB each time they exceed their data limit or every 24 hours, whichever comes first.