If you use Gmail, Google can keep track of every purchase you’ve ever made, even if it wasn’t a Google purchase. Almost everything you buy comes with an email confirmation or receipt. Every email confirmation for a plane ticket or a Starbucks card reload is something Google adds to your Google Recent Purchases list. Fortunately, you can delete this purchase history. You just need to know where to go.
How to delete purchase history from Google Play Store (WORKING METHOD)
To view your Google payment history and recent purchases, simply sign in to your Google Account and go to the Google Purchases page.
Here you can see all your recent purchases, organized by date. If you scroll down, you can see relatively recent purchases, as well as purchases that date back to the previous year.
If you don't want all of your purchases to be tracked on Google's servers, you can delete purchases from your Google purchase history.