Did they ask you to provide an employment contract and employment confirmation letter or did you just give both to them? What is the difference between both documents?
I'm a US citizen who recently applied for a Thailand Tourist Visa while I was in South Korea. In regards to additional documentation beyond what is asked for on their eVisa portal, they emailed me a couple days after submitting the application requesting flight tickets leaving Thailand and bank statement of the last 3 months showing ending balance no less than
*****
0 won. After emailing that to them, they emailed me again requesting a photo of my K-ETA entry stamp on my passport for South Korea and hotel confirmation for the full 60 days of my stay in Thailand.
I wish this was added to their eVisa application saving a week of back and forth emailing of documents but it is what it is plus I much prefer this than having to go physically to the consulate. If you're applying from South Korea, I'd recommend doing so at least 2 weeks before your flight to Thailand since they will definitely need additional information.
It seems that other countries allowed in Asia to do this in are only China, Hong Kong and Macau along with South Korea. I wonder why more people don't just fly to one of these locations to renew their Thailand Tourist eVisa so they won't have to deal with going to the actual Thai consulate in Vietnam or other neighboring countries?