As the DTV is a 5 Year Multiple Entry Visa and an Extension on a single DTV Entry would be for 180 days, it is unknown as of now and might be better off to not get an Extension, but just a Border Bounce to get a new 180 day Entry.... π€·ββοΈπ€·ββοΈπ€·ββοΈ
The very first window everyone encounters when accessing the Thai E-Visa Website from anywhere is the following window where you have to affirmatively acknowledge by clicking "Acknowledge"
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It is important to note that you are only able to apply if you are currently not in Thailand.
Well, your accommodation is that condo you had rented for 6 months....
Also, curious why you bothered to apply for and buy a Single Entry Tourist E-Visa from the Thai Embassy in Canberra back in October 2024 instead of just making a free visa exempt entry into Thailand: just like you plan on doing tomorrow (3 January 2025)??
Yes, you could try going to the Phuket Immigration Office, but most likely, would have to return back to Phuket Airport Immigration to get the correct date of 26 June 2025 for your latest entry today (on 29 December 2024).