!!! HELP !!! Charged TWICE for Webroot Premier

 After running a scan of my on Sept. 11th of this year, I saw that the App had
a message asking me to upgrade to the premier version.I was really  confused because I
had already purchased it maybe 5-6 months ago for something like $19.95. I immediatly opened up the " Play Store " app on my phone and navigated to the " My App's " page, found the Webroot Premier icon, clicked it, and was taken to the Play Store page where your App is located.    As soon as the app page came up, I was asked to confirm my purchase. I exited back out to my apparently and found that I was being charged THE $19.95 AGAIN for the app! I went straight to the email link and sent this exact message ( on Sept. 11th ). I only recently recieved a reply telling me to ask for help here.  So, here it goes......HELP!!!