Blocked User
The Blocked User feature allows you to restrict certain users from contacting you. Once a user is blocked, they will not be able to send you messages, view your online status, or interact with you through the chat module. You can manage your blocked users here, including unblocking them if needed.
If you block any user from the chat box then you can see the blocked user here. All the blocked users will be shown here in a list.
Unblock: If you want to unblock the user just click on the unblock button and the user will be unblocked and you can see the user in the chat list.