First off let me say I've never bought gil before. The first time I bought gil was through this site and after about 15 minutes after payment I decide to live chat to ask them how long it will be until they deliver since it said 5-10 minute delivery.
Then they tell me it's already been delivered so I look in game (which I was logged into the entire time) and I have no gil or letters, friend requests, tells, messages or anything. I ask to speak with a manager and they told me to skype him. During that conversation they ask if I know someone named Jason and I say no. Then they say I'm a scammer and that they already delivered the gil.
Long story short, they TOOK MY MONEY AND KEPT THE GIL. STAY AWAY!