Again my friend, this is what I been told just a week ago when I made my appointment to the thai embassy, they insist that can not, I will ask them again, and clear with them if on the internet it possible to do, but in the embassy can not from some un logical reason .
anyway maybe it a matter of organization and country, some countries the thai embassy maybe more informed and organized, and back to normal, and some not yet. The same as in Thailand, every immigration office has it own freedom and flexibility about the way to conduct immigration policy. Maybe this is the cause.