Anonymous reports weren’t anonymous…

So, I was just corned by my SM and DM about reports that were made about the quality of my store. I have submitted 1-2 anonymous reports, but they claimed that I had submitted over 15 in the last month, with claims that I haven’t ever made about my store, SM, other SMs, or my DM. They cornered me while my DM was supposed to be on PTO to tell me to not ever tell anyone what happens in my store, about my store, about how I’m being treated, etc. So the big question is, has anyone ever had this happen to them? Is there anything I can do other than leaving? Is this enough to get HR involved and have them fired? I don’t feel comfortable working under a crew of leadership that corners me and says that I have done things that I haven’t.

Where do I go from here?