My only experience with banner ads is, having an adblocker that blocks them from showing. A significant number of users do exactly the same. Sure, there are a few that haven't worked out adblockers yet, but most people on a regular computer these days have. I'm not sure I'd be wasting your money for that reason. I'd imagine the ads would be quite expensive. Your call though. Get onto live chat under the help link at the top of the page.