We have your money now so we don't care if you cancel or not!
If you want to keep playing the game, pay more and get more.
We said you don't have enough and that is the way it is.
When you have enough you can proceed and not before then.
If you go to the store and put down 5 cents for a bag of chips
the store is going to tell you that you haven't paid enough,
same applies here, you haven't paid enough.