What sucks is that this had happened during Halloween event as well and I lost about 300MC before I became aware of it. I contacted the support back then, and they gave me the MC back but they told me it was one-time refund. Well, just lost 45MC, despite me trying my best not to let it happen again.
You can check your MC gain/loss at the "Credits" tab in your "Profile" page.
Edited by El Bandito, 24 December 2014 - 03:32 AM.