I just received the call from our agency, we got LOA!!! You may remember the problem with our agency authenticating our I-171H and they had to get it authenticated again and sent it back last week and while everyone else got their LOA on 7/21, we did not. I have been in the dumps for the past two weeks and finally we are almost to Samantha. Hopefully, we will get our TA very soon and be able to travel with the rest of our group. I am so relieved.