How can i get rid of a pop up about saying that i have been selected to win

[Katrinawolff]

How can i stop this pop up saying i have won a gift

 

[mhinc]

How can i stop this pop up saying i have won a gift

It's most likely a running app, or you have some spyware on your phone. Did this happen after installing a specific app that you can recall?
When does it happen? Any time? Or specifically when using an app? Can you take a screen shot and post it?