I had a similar issue for years (or seemed like it) with Rival Gaming pop ups.
I tried pop up blockers, ad blockers and nothing worked on it. I finally started Googling and found someone smarter / far more Tech savvy than I. They were able to diagnose and then described the steps needed to eliminate the problem and I was able to resolve the issue.
Granted your situation may be different, but help is out there.
In my case, I had inadvertently / unknowingly clicked a button that allowed that application to be uploaded and caused my own grief. Apparently a lot of other unwanted software hitch hikes on the Rival software that allows additional unwanted crap to come in. Once I uninstalled it though, all the undesirable effects disappeared.
Good luck!