Deceased

Good day, my husband is deceased and had two accounts that need closure. I get calls asking to speak to him, of which is rather distressing considering he does not have a telephone line to connect him to you. I asked the lady Busi at Mall of Africa to assist in closure, gave documentation, copy of ID and death certificate. I asked that the contract be on my name, of which only one number was considered. The other two need to be closed off. I sent a cancellation letter. Now why is no one closing this?