Becaful when you join 1Life insurence scarm

My husband had a life cove with 1Life insurance. He passed on due to unnatural cause, when I claim they told me that my husband did not disclose illness but they continued to take the premiums while they know that he did not mention the illness. Secondly I was going to say maybe the insurance have a point if he passed on due to illness, in this case what they say does not apply. They paid funeral cover because the too little, but they to pay a life cover. They gave a false hope to submit the documents while they know they wont pay the claim. People of South Africa they must know when they join this company they joining a scarm.