If you want to delete your Supercell ID on Hay Day, you need to follow these steps:
-Log into your Supercell ID account
-Click on the “Settings” tab
-Under the “Account” section, click on the “Delete Account” button
-Confirm that you want to delete your account by clicking on the “Delete Account” button again
-Your account will be permanently deleted and you will no longer be able to access it