How to delete a WhatsApp account?
The description of the service:
WhatsApp Messenger is a free, cross-platform, end-to-end encrypted instant messaging, proprietary and social media application for smartphones. It uses the Internet to make voice calls, one to one video calls; send text messages, documents, PDF files, images, GIF, videos, user location, audio files, phone contacts and voice notes to other users using standard cellular mobile numbers.
Deletion complexity:
Medium
In the settings mobile app: Settings - Account - Delete account.