This is the information on the Unresponsive Profile Managers Help page for Private Profiles
Private and Unlisted profiles of modern people present a different problem. We cannot allow them to be adopted by anyone who isn't already on the Trusted List.
If you are trying to add a modern family member and discover that one of your relatives has already added them, make sure you do all the following:
Propose a merge or send a Trusted List request.
Send a Private Message to the manager (an e-mail message is better if you have their address). This is important because Trusted List requests can get caught in spam filters.
Post a comment on the manager's profile.
If you have not heard back on any of these for seven days, feel free to create the duplicate profile or family line.
At the same time, check the member's Contributions list. If it has been more than six months since their last contribution, click the link for the Unresponsive Profile Manager form on the main profile page (a small text link in the box with Trusted List information). When we receive your request through this form, WikiTree will try to e-mail them. If they don't reply for seven days, we will orphan all Public and Open profiles they were managing and delete all Private and Unlisted profiles unless there is someone else on the Trusted List, or extenuating circumstances.
I had already posted a comment, sent a private email and then today sent a Trusted list request. In a week or so I will create a duplicate and then do the UPM, as their children are also deceased.