I have my own PSN account which was created on my mom's PS4 (not a sub account I’m over 18) and so I recently bought my own PS4. Without PlayStation plus from my mom I went to go purchase a subscription and it says I already own it. Or when I try to buy it’s just gonna add to my mom's subscription.
I tried to get into a game (Overwatch to be exact) and it says I need to buy plus. Both my mom and I are clueless.