Has this ever happened to you?
It happened to me once, and to this day I'm not sure if they charged me by accident or someone had gotten hold of my CC details...
Luckily though, MasterCard handled it well and refunded me the money on the 2 unauthorized transactions. I called them up as soon as I got the bill and within a few days they sent me a form to fill out. Then a few days later they told me that my money was fully refunded and that they were still investigating the cause of it. Unfortunately they didn't tell me why or how it happened. But I was satisfied to know that I got my money back. However, I got a new card after that since I didn't want to risk it again.
