Welcome back to Azeroth! Since you are a returning player and were formerly in the guild. Simply send a whisper in-game to any of our officers and we can re-invite. If you are unsure of who our officers are you can open your social tab by pressing "O" in-game and in the "Who" tab type "By His Stripes" and it will populate with guild members online. Then you can whisper one and they can share if an officer is online.