Removing pop ups

The instructions for removing pop ups under Advanced settings/Appearance are incomplete as there is no button to 'Set maximum frequency of in app offers…'  Please advise how on earth I can stop being plagued by these items?

Hello Tina,
We regret for the inconvenience caused. We believe that you could be using an older version of AVG. To upgrade to the latest version, please follow the instructions in http://avgclick.me/UpgradeToLatest .Thank you.