Passing the buck and continuous loss of documents.

My sister Ursula Deysel has been appointed by me as executer of my late parents last wil and testomy. She contacted old mutual 3 months ago with regard to the following 2 policy\s : *** & ***. She has been sent from pillar to post the past 3 months and that stops here today. Every time she has documents requested by old mutual delivered by courier to their mail room with a reference name