I was looking for a friend using Google. When I tapped the "more info"section, an ad popped up at the same time and I tapped that by accident. Now there's 3 round white circles with a black upside down exclamation point in the middle on my notification bar that won't go away. When I pull the bar down, there's no option to delete. I've tried just about everything to get them off my phone with no succuss. What can I do to remove these from my phone? I have an android X500. Feeling stressed.