You pay an extra 2 cents per megabyte if you go over your allotted data in Australia. It's charged in one megabyte increments.
You pay 25 cents per megabyte extra for the following 14 countries: Albania, Cambodia, Colombia, Fiji, Gibraltar, Guadeloupe, Guernsey, Indonesia, Isle of Man, Israel, Jersey, Kosovo, Philippines, Qatar.
Monthly data pricing: $30 for 250MB; $50 for 1GB; $100 for 3GB; $170 for 5GB.
Choose this plan if you're a regular traveller and want a plan that can be used in a multitude of countries around the world.
What about competing offers?
Vodafone allows you to pay an extra $5 per day to use your existing plan's data allotment for international data roaming in up to 47 countries. It's a feature that's available with many of the company's month-to-month, 12-month, and 24-month plans. Considering that you can get 4GB of data on a $60 Red SIM-only plan, or 6GB on an $80 Red SIM-only plan, paying $5 extra to use that data for a couple of days while overseas might not be that much of a hassle. However, it'snot worthwhile for longer stays.
You can use Vodafone's data in the following 47 countries: Albania, Austria, Belgium, Brazil, Bulgaria, China, Croatia, Czech Republic, Cyprus, Denmark, England, Estonia, Finland, France, Germany, Greece, Hong Kong, Hungary, Iceland, Indonesia, Ireland, Italy, Japan, Lithuania, Luxembourg, Latvia, Malta, Montenegro, Netherlands, Northern Ireland, Norway, New Zealand, Poland, Portugal, Romania, Scotland, Serbia, Singapore, Slovak Republic, Spain, Sweden, Switzerland, Slovenia, Thailand, Turkey, USA, Wales.
Extra data is charged in 1GB blocks that cost $10. Pay-as-you-go roaming for countries not covered by the $5 Roaming feature incur a cost of $1 per megabyte.
Telstra has a Travel Pass that's available for existing customers to purchase for $5 per day in its 'zone 1' countries: New Zealand, Indonesia (but not Bali), and Thailand.
Its 'zone 2 countries cost $10 per day: Cambodia, Canada, China, Croatia, Czech Republic, Denmark, Fiji, France, Germany, Greece, Hong Kong, Hungary, India, Ireland, Israel, Italy, Japan, Malaysia, Netherlands, Norway, Papua New Guinea, Philippines, Portugal, Saudi Arabia, Singapore, South Africa, South Korea, Spain, Sweden, Switzerland, Taiwan, Turkey, United Kingdom (England, Wales, Scotland, Northern Ireland), United Arab Emirates, United States of America.
The Travel Pass needs to be purchased in blocks of days. It's available for 3 days with an allowance of 150MB, 7 days for 350MB, 14 days for 700MB, and 30 days for 1.5GB. Extra data is charged at 3 cents per megabyte before your Travel Pass elapses. It is charged at $3 per megabyte after the Travel Pass has elapsed.
What this means is that a 7-day pass to a 'zone 2' country, for example, can cost $70 for only 350MB of data. This is in addition to what you pay for your regular mobile access. Furthermore, using excess data after the Travel Pass has elapsed could really hurt your wallet.
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