safari reloads same webpage continuously
Safari reloads the same webpage continuously in the toolbar of my IOS El Capitan, covering the page I am trying to work on. This is the address that comes up (https://az815563.vo.msecnd.net/olc/en-us/10528-t01-v01.html?cid=1521517023011391 235&loc=en-us) It shows 2 options: 1) "No thanks" which is not functional. and 2) Send me a link. One's mobile phone number is required. I finally entered that, in order to get this off my computer. It took me to the iTunes Store where the Outlook Mobile app is offered. I even downloaded that. Still this webpage continues to reload over whatever I am working on. I can't close it. downloading the app didn't work either.