Minor changes like updating an email address, phone number or mailing address can be made in your Always Amber control panel. Login at https://www.alwaysamber.ie/panel/clientarea.php?action=domains and select the domain you wish to change, on the following Domain Management page, select the 'Contact Details' option in the left-hand menu and make your changes.
To change the contact person associated with the domain (the Domain Admin) a signed letter will be required.
This letter should read:
I authorise the change of Domain Admin for the domain xxxxxxxxx.ie from (Previous Admin-Contact name) to (New Admin-Contact name + email address)
If you don't have a company letterhead, you'll need to include your full address and telephone number (or the business contact details, if the domain is held by a business).
The letter can be attached and sent via email or open a support ticket and upload the file.
To change the domain holder on a .ie domain name, please refer to: How do I transfer ownership of my domain to a different company?