If there are huge deviations, then you should first make sure that the insights you received are actual insights from the profile. You can get a first impression by manually checking the commenters, likers,  and followers of the given profile and getting a general idea of that influencer's audience. If this differs a lot from the insights that you received from that influencer, we generally recommend asking influencers to cooperate for screen captures (videos of the mobile screen) that show the profile page and then open the insights. 

If everything seems correct, you can contact us anytime, and we will help you with this issue.