For the last month or so I have a little pop up bubble (it looks similar in shape and size to a facebook messenger bubble) that shows up with a picture of a cell phone and the word "win"on it. When clicking on it (which is the only way to get it to disappear) it opens a "jackpot" game where you push a little red button and the casino style game spins. I have no idea what app this is from or where it came from, can it still be removed without knowing any of this? If so, how? Thanks!