The Consulate can not offer advice, information, or assistance on obtaining, extending, or facilitating visas for Thailand.
If you are in Thailand contact Thai Immigration.
There are also many Thai Visa Agents in Chiang Mai who can assist with visa matters – these can be found through internet searches or by checking with the Chiang Mai Expat Club.
If you are in Australia you need to contact the Thai Embassy, Canberra, or a Thai Consulate closest to you – for information. Thai Embassy Canberra website