Just looked at my May 26 statement, which seemed to have a high total, and found I was being charged for two complete strangers who had booked Emirates tickets at $411 each. Phoned Platinum Customer Service who said the charges would be blocked while they "investigated." The ticket numbers appeared on my statement - weird that such relatively minor charges would be made if they somehow got my number - weirder still that they could fly anywhere on Emirates for such a small amount.