I've seen a lot of mobile deals come up recently but still haven't seen this one posted. Please delete if it is a dupe.
Mobile Pay As You Go Budget $1 Per Month - No Contract
Monthly Charge $1
Standard National Calls (per minute) 9.9¢ (billed per second)
Standard National Calls Flagfall 10¢
SMS National (per message) 9.9¢
Included Mobile Data
150MB - TPG DSL Customers
50MB - Non TPG DSL Customers
Charges for data usage on Pay As You Go Plans:
^ Data usage on Pay As You Go Plans is charged at 0.275c per 100KB session block, and displayed in MB format (1MB = 1000KB).
Startup costs:
$20 for sim delivery +
$20 refundable deposit used as credit. Once your deposit/balance falls below $5 it is topped back up to $20 but it does not expire. Once you cancel your balance is refunded.
Considering the call rate is 0.165c per second this is great value for such a low end plan where call costs are normally quite high. Note that this plan mainly suits domestic callers and texters as MMS is quite expensive and it does not include video calls.
usage charges: http://www.tpg.com.au/mobile/callrates.html
Note the high call rates for 13/1300 numbers: $0.35 flagfall + $1.02 Per Min,
and 1800 numbers: $0.35 flagfall + $0.62 Per 30 seconds
I do believe this is a good plan for people who don't use their phone very often, but I don't really understand why people are posting phone plans on ozbargain.