In my opinion, the system automatically calculates the points and cash credit. if your points are not correct then please see whether three is a deduction of points in any section. For example, if you response an answer in ask expert and got 5 points but at theof time approval the pont may be reduced to 3. Similarly, in question paper section, school approval points are deducted at the time of approval. I will suggest you check your points and cash credit in different section by visiting earning report in dash board.
Honesty is the best policy.