You can file a TM30 yourself at Chiang Mai Immigration - need a copy of his tabien baan, lease/rental agreement and a form. If the address is already on file, only the rental agreement and form. Source - I've done both ways before.

@Rob ******

Interesting - I had thought they needed a ticket out, but it has been years since I applied for one.

If she enteted on a single entry tourist visa, how did she get it without a ticket out of Thailand?

@Peter ******

You can't apply for a tourist visa within Thailand - you need to go to a neighboring country or back to China to apply through an embassy or consulate. There's also no three-month visa for a tourist - different if applying for a retirement or other type of visa. There is a 60-day single entry tourist visa that can be extended for 30 days at Immigration.

With only one previous visa, it shouldn't be a problem. There are no reports of people being turned away by Canberra or Sydney for applying for additional visas.

@Carsten ***********

depends on the immigration office - it's 2k in Chiang Mai.

@Nick ***********

Never had a problem using my Bangkok Bank and SCB cards before - ATMs and tap'n pay, but I usually try to use cash - although that is getting harder in Australia.

They have to do it legally, but despite some of the other comments, there's no law that says they can't charge an administration fee for processing it, just like any other paperwork filed with Immigration. If it was illegal to charge a fee to file paperwork with immigration - physically or electronically, visa agents would be in all sorts of trouble.

OMG - Hua Hin is enforcing a law in the Immigration Act that was passed in the late 70s. I'd say the horror! but welcome to what immigration offices do in other parts of the country.