You need to go to the police HQ in Bangkok near Central World to get police clearance.

Also I could be wrong (90% sure I'm not) but I don't think you can change from a non-ED to a non-B while being in the country. You will need to leave and apply at an embassy in a neighbouring country or leave and re-enter on an exemption and convert the exemption.

@Michael *******

would have been scammed as foreigners can't own land. Only Thais and naturalised citizens.

@Tin *********

฿900k+

@Mark **********

stats and facts reject that age old claim

No 30 day extension on a non-O you can either do a border bounce and come back in with 30 day visa exemption or you can get a 1 year extension for your non-O.

@Sandra *********

non-b & LTR

@Will ***********

it's completely random and unannounced too. Have seen them turn up multiple times in a single day too.

It's possible but it's extremely tedious, I would highly suggest using an agent, if you don't want to use an agent you will spend days looking for a branch that will accept as each branch is governed by its own rules and with recent changes it's much harder. If you use an agent it will cost between 6-10k depending on where you are and save you a lot of time and hassle.

Has to start the whole process again

This is going to be fun to watch