I know this is hard to believe but it's what happened. I've submitted 2 Report A Bug forms within the game but no one has responded.

On the morning of Sept 14th I was buying a few things from NPCs and the AH. I had about 11,000,000 Gil and bought various things such as Cobalt Ore and other materials. I was keeping a close eye on the prices as well, as I'm sure I would have noticed something costing 9 million gil.

When I went below 10,000,000 gil the counter then changed to around 999k. And before you ask, yes I am quite sure I had 10,000,000 and not 1,000,000.

SE - I've submitted 2 support tickets so far, can someone look into this? I'm sure you must have records of my transactions. It was mid morning Eastern time on 9/14/13. Thank you in advance!