Yeah yeah, all flight instructors screw their students. All flight schools screw their employees. All airlines are out to screw their pilots and customers. All unions are out to screw their pilots and the airlines. On and on ad naseum. Would you like some cheese with that whine?

If you have a concern about charges and are not receiving the desired value, discuss it with your instructor. You are the paying client and can decide to not pay further at any time. However, should you decide to not pay, expect the CFI to not instruct you further.

Regards,

A really expensive CFI