Have you asked the profile manager of Lawrence-988 to add you to the trusted list?
What can you do if you're waiting for approval from someone else?
If you'd like to complete a merge but it needs approval from someone on the Trusted List of a profile, click to the Trusted List page (Privacy tab) of the profile and send a message to the Profile Manager or anyone else on the list. Include the comparison URL. It will look something like this: https://www.wikitree.com/index.php?title=Special:MergePerson&user1_name=Example-3&user2_name=Example-5&action=compare
Keep in mind that the Profile Manager(s) would have received the merge proposal e-mail when it was proposed, but they may not have it anymore.
If they tell you that they do not want to merge because they don't want to collaborate, see Profile Managers who refuse to merge.
If they don't reply at all, you will only have to wait 30 days. If a Pending Merge is not completed, rejected, removed, etc., within one month, it is considered approved by default. You or another Wiki Genealogist can then complete it. However, if a profile is Private the merge can only be completed by a team member.