Terminology is key because the incountry Non-O does not need to be seasoned funds (except for maybe 2 Offices) and usually needs to show as an international transfer. An Extension of Stay will always require the funds to be seasoned and does not require to be from an international transfer. Significant differences.
No you got your retirement (over 50) Non-O in Australia and in Thailand you applied for a 12 month Extension of Stay (based on being over 50). Terminology is key.
I never said it was "Why, when wanting a Non-OX Visa". The DTV has a 500k cash requirement in an accessible bank account as a start, if you don't have that don't bother looking.