I received one of these letters a week ago and figured it was fake since theyr where a few mistakes in it. I just recieved another one today exactly the same as the last one. Im pretty fucking upset, the first one had me confused but this second one is just pissing me off. I Ordered a O a few days before T.M went down and didnt F.E. I already figured my package wouldn't arrive and didn't really care, but now these letters keep showing up and im almost 100% sure theyr fake. Ide give up alot to find this vendor and show him how i really feel about this, if someone else saw this letter theyd assume its real. I understand theyr are risks in this dark market business but this shit is just ridiculous.
I had a very similar thing happen to me a few months ago. It happened when I ordered a free sample from a Colorado vendor on SR 1. Here is a much more detailed explanation of what happened: http://www.reddit.com/r/SilkRoad/comments/1pqniw/love_letters_and_return_buyers_do_you_live_in/cd548s0
You'll see from my explanation that all ended up well. My drop address wasn't burned. In the link I provided, I included a picture of the letter I received (I got two of the exact same letter like you did.) I'm interested if you received the same letter. Let me know once you read that thread I linked to... I honestly still can't tell if these letters are fake or not, but they're incredibly annoying.
PM me if you have any more questions. Good luck, man.