Here are the steps to know how to delete a snap account permanently -
1. Visit the accounts.snapchat.com on your browser.
2. Log into your Snapchat account.
3. On the Manage My Account page, scroll down to Delete My Account.
4. Now, Click on the Delete My Account option.
5. Enter your username and password to confirm.
6. Tap on Continue to start the process.
7. Don’t log into the app again.
Your Snapchat account will be deleted permanently in 30 days.