Confirmations print by default only when the job fails, otherwise it is typically a waste of paper, and as many have put it (Xerox just using up valuable ink and wasting the customers money).
But you can indeed have it print when successful too.
EWS > Apps > Email then scroll down a little past the halfway mark to find it.
As for the fax cancel, it has to be done outside of the fax option.
So on the device go to Home > Jobs and just touch the fax job, then select Delete