Not a new law. You did not apply for your DTV with the Immigration Department. You applied to the MFA (Ministry of Foreign Affairs). Take it up with them :-)
Mist posts here indicate self service. In the first few months 12k DTVs issued and agents had not jumped on the bandwagon by then. What value do agents really offer apart from QA checks of submissions? Do the dodgy ones have contacts in Embassies? I know an agent and she recently asked me about offering DTV services. I said possible but QA checks on submissions, go between with soft power providers and add on services like property/concierge services was all I could think of. She has good contacts at immigration but they do not issue the visa
He had a hip replacement at Bumrungrad. How he did it on overstay was a mystery to us. They want passport and visa details. At least they have when ai hace gone and used that place for 25++ years
I woukd think so for most. Agents can make most issues dissappear. An older guy who drank in same bar as us in Bamgkok had a6 year overstay disappear and a new O Retirement included for the 400k fee a couple of years ago :-)