Requesting refund

Hello

 

i have upgraded my Norton Security antivirus to the premium version for 29.99 $ through Google play store but i was surprised when i opened the app that it is just for a one year subscription.

this SHOULD have been noted in the app description or inside the app in the "upgrade" tab

 

this is deceiving and is completely unacceptable behavior from a well known corporate

 

i would please like to know the procedure to get a full refund please