I love Poweramp ever since I first had it on my Redmi Note 7. But when I found out that I couldn't have it here because I need Google services it made me uneasy, still I decided to buy it again because i love the app. However, I uninstalled the unlocker for a while, and now that I want to use it again it asks me to buy it again. I thought it would be saved as in Google. And I don't have the economic facility to buy it all the time. Is there a way to restore my purchase? I can prove that I have purchased it in my Google account.