I hate assupol

The worst experience insurance company i have ever had ever seen ,my son had policies this provider he passed on last year august,i went to assupol to claim will all documents required when i get there i was advised to open estate late account i went bsck with proof of account i was then send back saying i should bring leter of authority i did explain to them that im from court and i was advised that they cannot issue me letter of authority since my son don't have estate but then they insist that I should bring the letter so now im wondering that since theres no letter of authority it means my sons money his been paying sooo many ****en year is forfeited,