I go for a 90 day O visa. If you already have the money there is no need to use a visa company. I went there for advice in Udon. She advised me to do it myself as they only deal with people who don't have the money
I did 90 days. I extended at local immigration 60 plus 30. When I left to do a border bounce I was pulled into another room and quizzed by immigration officials. But I was already advised beforehand to apply online for the E visa which is what I did. It seems immigration does not like tourists trying to get more than 90 days anymore for free. It only cost 1000 baht and I got another 60 day stamp. Now I can stay another 90 days with another immigration stamp
Yes it's a little difficult. Search for "legalization MFA" on the home page you should see a message moving across the screen. At the end of this message there is another web address to click into . After you click scroll the the bottom of the screen and press confirm. Should take you to the booking screen. Let me know how you get on. I can send you a link when I get home from my laptop