If you want to cover all bases: Take photo of entry stamp, convert this to PDF. Then merge this PDF with a hotel booking confirmation PDF (easy to do merging online).

One further question

@Brandon ***********

,

@Wayne ********

,

@Phil *****

- any experience with the timeframe of the Syd consulate? (how long does it take between sending/receiving passport)

Thanks so much everyone! Really appreciate the help 🙂

Another suggestion: Go to the US version of the website - this travel website offers 24 hour free cancellation for some flights (you will see a green text on the flights that have this cancellation option). Do not use the Australian version, need to go to the .com version and pay in $US

Book and pay for a flight to KL on the morning of your flight out of Australia (and pick a date within the 30 days of your visa waiver).

The airline will be OK with you showing this as proof that you are leaving thailand within the visa waiver period

Once you arrive in Thailand, cancel the flight and get your money back. Then do the visa waiver extension as per other posts in Bangkok.

Hope that helps!