I had several domains with the .com.tj extension and suddenly a month ago they all stopped working. They were paid up and I emailed every address the site and the .tj (TJNIC) site and no one answered me. I guess they went under...
Avoid these domains .tj .com.tj *.tj

Yeah I was trying to get a .tj until someone mentioned they had been waiting a year for the registry to accept registrations again. Gave up on that one.