I bought an Australia Post travel SIM for use in New Zealand. I couldn't activate it, and was told on a chat line that it was being blocked by Optus. As I own my mobile phone outright I thought that this should be impossible. When I got back to Australia I went to an Optus shop and was told that my mobile hadn't been blocked by Optus at all.

Used the travel sim in Europe & London in December 18 & May 19 no problems. Had to recharge for NZ now & it will not work. Why? I rang my friend & number shows as coming from UK. I cannot ring numbers in NZ.

bought 2 sims so my wife & i could contact each other if we got separated in UK.
hers worked so she could send sms to me but i couldn't respond or send sms to her.
found that the app on website was wrong, they allocated additional numbers as backup as they were having technical issues, but that was no comfort while abroad. Spent time on the phone to Australia trying to get problems sorted out.
Don't waste your money. should have taken the advice of the Optus salesrep and bought a phone when we got overseas

Just returned from Europe, England France and Italy.. The Australia Post TravelSIM worked perfectly in all the Countries above.. Didn’t chew too much data when using google maps and basic searches, Would definitely recommend it.

NOT RECOMENDED.
As with other bad reviews my service was usless in Western Europe as despite having activated and tested the SIM in Aus any O/S attempts failed. All phone settings were tried and both SIM slots used also. The only messages received were to advise of new country and "beware excess data and call charges may occurr....". In the last week of 4 weeks I was able to use messaging and thats where $4.50 of the $35 was accounted, however the full amount was deducted and it still keeps showing $3/week incrementing in debt ! Use WhatsApp or similar when you have WiFi as that worked for the most part as an alternative.

Bought 2 Australia Post travel SIM's to go to to Europe. Had a great deal of trouble getting it to work. Their tech help was very good, after numerous calls it worked. However we found it expensive 25c/min for calls and 25/text to make and to RECEIVE unless your call is to/from an Australia Post travel SIM when there is no charge. Save your money and buy a SIM in the country you are going to. We bought one in the UK for 15 pounds ($A27) which had 5GB data and 500 mins of calls with NO addition charges, 30 days expiry, when we renewed the data rolled over. It worked well throughout the UK and EU and didn't need to contact their help desk to set up.

Bought it used it in Prague topped it up online the credit never came through tried to ring and email and no response just buy a SIM card overseas easier and cheaper

Purchased the sim for data in Canada. Had to call the help line to activate it as the language was not clear about which of the many codes we were issued was correct. Didn't work when we arrived in Canada- Help line again. Data meter went from full to zero without using it. Didn't work when we tried to reload and left us stranded without maps for 6hrs waiting for reload to update. This is NOT a good product.

the australia post SIM card advertises $25 for 1 gig of data, but doesnt make it clear that your initial purchase of $25 is only for the SIM., You need to spend another $25 to get the data. So the total cost of $50 makes it very very expensive compared to buying a SIM at foreign airports on arrival. The US, Canada, Europe, NZ and Singaporean airports all offer monthly data and phone deals for $20-30. The auspost sim is only OK if you want the convenience of buying it before you leave.

My travel Australia Post prepaid travel SIMs have done what they needed to do with phone and data services. I once lost a printed credit voucher before applying it (my fault). I was able to get a reprint of the transaction from the Australia Post outlet, then got the top-up from the support centre with no arguments (after some initial confusion). On my first time with the SIM I wasn't warned that the phone service doesn't always work in the normal way. When making a call, you sometimes get a call back rather than an immediate answer from the other end, and that confused me a lot at first.

My husband & myself bought a "travel sim" SD card, just before we went overseas for the first time. It had been recommended to us by a friend & we found it amazing. Cheap, reliable, easy to use, rates were just so cheap compared to other ways to keep in touch ie Roaming, which is very expensive. We were able to contact each other easily if we were in different areas of large buildings, churches etc. We can use them in Australia to ring overseas at a cheap rate, or just use it for any phone calls. The help line is open 24/7 & you can reach them on Email or by phone anytime of the day or night. We would NEVER travel without our Travelsim!!!

Activated the sim. Belatedly thought to ask for the Phonenumber. Awkward! Message from them. We'll get right back to you. 3days later still waiting and I've had to call. Again.