Terrible customer service dealing with the death of a loved one

I have been on a call for 40 minutes now trying to find out information about my grandmothers pension fund. I have had to explain to 7 different people that she has passed away this week and what info do I need to send you guys to cancel the policy. I am already distraught at the passing of my gran, now having to repeat myself over and over. The 6th person I got hold of had the audacity to tell me it's common sense that the policy would now be ended as she has died. What kind of a response is that?! To a person who is grieving?! I clearly had the common sense to phone you guys to discuss this and yes, clearly I know the policy will end now. I am just trying to find out what info you need to end it. Your staff's tact in how they deal with clients dealing with this is so insensitive. I'm even more upset now than I was before the call.