Discover Credit Card Complaint

Discover Credit card department,

Advertising and marketing Florida

My in-laws ( - & - - ) used to live in the house that I live in now. they had a Discover Card for many years. My father in law died 6 years ago and my mother in law 3 years ago. In the past 2 years, we have gotten 6 or 7 credit card solicitations addressed to - - Deceased.I have the latest one here and unopened. I also took pictures of 2 others. I have called every time that I get one and they say that they have fixed the problem but we keep on receiving them. My wife is starting to get upset with the constant reminder that her Mother ( - ) is deceased. Can you help?