How to delete hidden purchase app

Howdy shafeeqanzac,

Thanks for posting in the Apple Support Communities.

It sounds like you're looking to delete a purchase appearing in your Apple ID purchase history, correct?

If we understood you correctly, there isn't a way to delete the apps previously purchased, or downloaded, in your purchase history. If you would like to provide feedback to Apple to consider your suggestion in future updates, we'd recommend submitting it via the following link. This will allow for the appropriate teams at Apple to see your suggestion: Product Feedback - Apple

The current method to hide your purchases is the only option related to what you're looking to do. For more details on this, take a look at the following resource: Hide purchases from the App Store - Apple Support

What happens when you hide an app in your purchase list

When you hide an app in your purchase list, it no longer appears in the list of your purchases that's in the App Store. The app will still appear in your complete purchase history in Settings. And if you use Family Sharing, family members can't redownload the app from your list of shared purchases.

Hiding an app won't remove it from your device, a family member's device, or other devices that are signed in with your Apple ID. If you want to remove an app from the Home Screen, customize the Home Screen on your iPhone.

If you use Family Sharing and want to restrict children from being able to download apps without you being there to monitor this, set up parental controls with the steps found here: Set up parental controls with Family Sharing on iPhone - Apple Support

Have a great day!