How to completely delete the message history of one WhatsApp contact so that it cannot be restored?

Question

Android

How to completely delete the message history of one WhatsApp contact so that it cannot be restored?
I found that when reinstalling the application, previously deleted chats suddenly resurrect again (from somewhere they are pumped up) if the chat with the interlocutor was cleared before, and even (!) If the interlocutor's contact was deleted from the smartphone.
Android.

Answer 1

I do not pretend to be a 100% guarantee, but the option is this:
- delete history from WhatsApp
- synchronize application data in Google account
- try reinstalling the program