Point not adding after successfully completed a task

I just finished a task ; Linux String Substitute (sed) , and I got only 150 points ( 100 for the task ; and 50 points bonus for being quick ).
But I remember when I first went to my dashboard , the points for this task were 200 , and got only 100 ( without counting bonus points )
Can someone check this for me.
Thanks in advance

You tried task and once it got failed. You again attempted it by taking review.
When you reattempt task by taking review , you will only got half of the points.