To confirm, have you already tried these steps: Tap the 3 dot menu > Not interested > Tell us why > Select the appropriate option? Also, our Help Center resource has info on how to improve your recommendations: https://goo.gl/mwxH46 . Let us know if this helps!
Hmm. To help the right team better investigate, can you send a feedback report from the device/account having the issue? Steps here: https://goo.gl/WdI0BK . You may not receive an individual response, but the details will help us identify and fix any issues, thanks.