I seem to have been hacked

I keep getting notifications that tell me so.there is also many messages from norton about updating my virus software, I have never had Norton on anything I use. I wound up installing a new version of Trend but I didn't realize I could have used my Trend account I already have.. please refund my expense for that as it's not fixing the problem.

Hello

You are likely seeing a fake security warning caused by a malicious or misleading website notification. Clearing your browsing data and resetting site permissions in Chrome on Android will remove it. Please follow the steps below.

How to Clear Browsing Data in Chrome on Android 
-Open Chrome on your Android phone.
-Tap the three dots (⋮) in the upper-right corner.
-Tap History.
-Tap Clear browsing data.
-Set Time range to All time.
-Make sure the following are checked:
-Browsing history
-Cookies and site data
-Cached images and files
-Tap Clear data.

Take note, these warnings are not real virus alerts. Do not tap links, download apps, or call numbers shown in the warning.