Example: https://eskillzlivesupport.freshdesk.com/a/tickets/19083

Thank you for contacting [Client's Name] End-User Support! 

We are sorry that you are leaving us and we hope you found lots of good information to assist you going forward. 

To process your request for account closure, kindly provide us with the name and email address associated with your account. 

We look forward to hearing back from you. Have a great day!