If you want to stop using the Mi.com website, a technology website of the Xiaomi company that’s all about phones, pads and TV, you need to follow the bellow instructions. You can use special link bellow .
Go to https://account.xiaomi.com/pass/del
STEP 2 .
The Delete Account will POP-UP right after login
but before you hit this button, you need to know:
Be aware of the fact that you’re about to lose all data (incl. order history, Mi cloud data, Mi talk data, etc.)
Mark the checkbox of “Yes, I want to permanently Delete my Mi account”.
Send the Verification Email.
Copy and Paste the verification code you have received in the Email and submit the code.
Confirm that you want to close the account.
A message will appear: Mi account removed successfully. Your profile is now closed.