Wrong Stats

I was going through my stats for the last week and the last 4 weeks and there were a lot of issues. In my weekly report Kendrick Lamar appears twice in the top 5 (which in reality he should pop up once). Then when I was looking at my last 4 weeks, there were tracks that were listed as my most listened to when in reality I think I listed to them once, maybe twice in the last four weeks. Do you know what would causing this issue?

There are duplicate artists in my lifetime streams and well so I don’t have a full grasp on what my listening data is. Disappointed as I paid for the premium version of this app to look at my full listening history.