This document provides instructions for deleting a WeChat account. It notes that you should delete the account from a frequently used device, your password or privacy settings should not have changed in the past two weeks, and you should cancel any linked services like WeChat Pay. It then lists the steps to delete your account, which includes opening WeChat, going to settings, selecting account security, opening the security center, tapping account cancellation, and requesting cancellation after reviewing what will be lost.

1. Delete WeChat
Account
WWW.HOWTODELETE..ORG

2. Before you delete your account
 You should delete the account from a frequently used device.
 Password or any other privacy-related settings shouldn’t
have changed in the past two weeks.
 Cancel WeChat Pay (if active) and unlink all other apps that
have been linked with your WeChat account. The services
like games, credits, group buying, discount coupons, gift
card, tickets, etc. will be terminated.
 No more than 9 failed password attempts on the day you
attempt to terminate your account.

3. How to delete WeChat account in
2019?
Keep in mind that once you delete your account you
will lose all data and information associated with
WeChat permanently. So, create a backup if you need
that information in the future.
 Open WeChat on the device from which you access
the app frequently.

4.  Tap on “Me”. A profile icon
towards the bottom right
corner of the screen.

5.  Hit on “Settings” icon at the
bottom of the page.

6.  Select the option “Account Security” in the Settings
page.

7.  Swipe down and then tap on “WeChat Security
Center”.

8.  Tap on Account
Cancellation.

9.  WeChat will show what you will
lose if you cancel WeChat
account. Read them all
carefully and tap “Request
Cancellation”.

10. Source:
https://howtodelete.org/delete-wechat-account/