How can I delete profile visitors?

Entries from the visitor list cannot be deleted, with the exception of users who you block. These users are hidden from all lists.

How can I retrieve a deleted chat history?

1. Open the profile of the user whose chat history you wish to retrieve. You can find the user by entering his/her name in Search or by locating him/her in the visitor/Faces list.
2. Open the Chat with the contact via the chat symbol in the action menu on the bottom right.
3. Open the options menu on the top right and click “reload”. The chat history will now be synchronized and old messages will be retrieved.

How can I block a user? - https://support.choiceoflove.com/hc/en-us/articles/201648791