what website do i go to, to get reviews on a samsung galaxy note 5

[AC Question]

I have a crack on the back of the phone. and only have had it for 3 days.

 

[B. Diddy]

Welcome to Android Central! Why do you want to get reviews? Do you mean you want to write a review?

Where did you buy the phone? Bring it back to them and show them the defect, but be aware that you'll probably have to convince them that this was actually a defect, and not a result of accidental damage.