If you need assistance with your Steam link you will need to stay in contact with customer support. Moderators cannot assist with an account issue from the forums. Support has access to your account information and can handle account-sensitive information. If you have not received a reply please leave your ticket number here. We can at least make sure that the ticket is with the proper team.
Keep in mind that because this is an issue with a link between a separate service it may take some time to resolve.