Having Issue with one of my Apps on Google Play

I am not sure who is doing it or why they are doing it but someone is ****ing around with one of my apps, Today I noticed 50 new app ratings on my app which only has 100-200 downloads, all 50 ratings are 5 stars. Alos I saw 50 new G+ Likes. I never bought any ratings or services. I do not even promote my apps at all. But it seems someone bought ratings for my app today, I can tell cause all the names are captialized and all the pictures are similar generic ones for profile pics. I hope this doesnt get my app suspended.

Could a competitor be trying to suspend one of my apps by buying up installs, ratings and g+ ratings?

or maybe a promotion testing, then later you will receive an email regarding app promotion.