How can I extend my 45-day tourist visa in Thailand and what should I do about my Malaysian flight?

Hello everyone,

I have arrived in Phuket on a 45 day tourist visa less than a week ago. I hold an Australian passport.

On entering Thailand I had to prove I had a air ticket booked out. I have a ticket to Malaysia booked before the 45 day expiry.

I would like to extend this visa to an extra 30 days. My questions:

- Do I cancel my Malaysian flight and rebook another flight in that extra 30 day period before going to the office and applying?

- Can I go to the Phuket office now to apply for the extension or is it too early to go?

Thanking you in advance.

Maraina