Example: https://eskillzlivesupport.freshdesk.com/a/tickets/17400

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

Kindly note, that your account name has been updated to [USER NAME] as requested. The change should reflect momentarily. Please note, this change will only apply to future certificates, as any certificates earned prior to your name change will not reflect the new name. 

As always, please feel free to contact us again at your convenience should you require assistance with any other inquiry,  

Have a great day!