Death claim

I submitted a death claim on the 12th and the funeral was on the 17th of June I didn't get the money yesterday the 21-06-2023 I received an SMS and they told me that my claim was declined cause there is no relationship between myself and deceased where's the deceased is my cousin's son.when I started cover him they told me nothing about that.I hurried my cousin without money and I wanted to do thombstone for him but I couldn't now I was told that I won't be getting my premiums .