Disgusting and Disrespectful

My wife passed away on the 03/08/21. I have been to FNB the Glen to inform them of this. Gave them all the documentation including the letter of authority from the high court. Yet now I see when I switched my wife's phone on, that FNB has still taken their monthly account fee... even though I was informed that the account is frozen. I find this absolutely disrespectful and disgusting that FNB will take from a person who is no longer alive.