Whoa!!! My nuffnang earning was reduced...

Yup, I got a shock when I saw that my nuffnang earnings was reduced... but don't worry... it was actually there were some mistakes in the system... they mistakenly inserted twice the earning of that month... I rejoiced when I saw my earnings was a lot this week... then got shocked when it was reduced the next day... I thought I did something wrong... later I received email from nuffnang indicating about the error and apologised...