I'm fortunate that my lady over here has a corporate position in a large company and deals with many Immigration issues for foreign employees of the company, so I always take her with me for the annual extensions, as she knows more about the process than I ever would. In effect, she becomes my "agent" and I leave her to do all the talking and sorting of documents, and it seems to work. I do however meet the income criteria for the visa and would never use an agent to illegally cut corners as I enjoy living in Thailand and don't wish to get any black marks against my name
Many Australians are now favouring the OX, as Australians do not have to transfer money to Thailand for this visa and it gives us a FIVE YEAR entry stamp. You do need 400k insurance which is available for around $1000 a year, but it's well worth it.
You can do it with an OA because you don't need 800k and you effectively get two years off the OA, which gives you ample time to open a bank account and get the 65k regime going
Correct except you're not getting a one-year extension stamped in your passport when you re-enter. You're actually getting a one year entry stamp. Two very different entities.