It states that the day pass starts whenever you send or receive a text. Does this include the ones Telstra send you when you transit say Hong Kong for two hours to inform you of Hong Kong rates and then again when you arrive in London etc etc
Thanks for reaching out and welcome to Crowd Support!
My apologise for the concerns that have been left unaddressed here as this is a good question.
A Day Pass charge is automatically applied when you use your services overseas in eligible destinations. Usage includes making or receiving a call, sending an SMS or using mobile data. This means that receiving these notifications would not be included as you using your service, so you should be fine there.
Please don't hesitate to reach out if you have any other queries.