Best Answer unnie , 20 September 2015 - 18:49 PM
That is an interesting question indeed.
The cost should not be any higher than the one it's supposed to be. However, if I had to guess, I think there might be some small fee that your bank charges (or some company in between) for the purchase.
If you feel there has been something more and seriously wrong with your payments, please contact game support at http://support.bigbangempire.com/ to solve the issue.
TL
Go to the full post