why do we have to hassle so much

My husband passed away in December 2014 he had an account with jet store.i then went thee with my daughter to inform the credit provider that he had passed away and I am unemployed.they said they are goin to close the account.I then received another letter addressed to him sain that he has to pay the account I then went again for the second time then the lady who was helping me said they Neva closed the account then she Said she'll re close the account surprisingly I recived another letter in march I then went to the store again to complain about it.But still to my surprise I still received another letter now that says his account is in areas.I'm jst tired of all this because I keep using money that I don't have to keep goin to the stores to get help that I dont get.i really don't know what to do now cos I've tried everything.