Not quite sure what you are asking. And we were fortunate to not need to "deal" with them after Katrina.
From what I have heard, there was lots of fraud. Sad, but there were people claiming need, who in fact lied about where they had lived, damages, etc.
There were lots of stories of disappointment and fights with insurance companies with the argument being was the damage caused by wind or water. And now even those of us with minimal damage in the area are paying triple and quadruple home owners insurance premiums because we live in a high risk area (I am 11 miles from the beach and water).
The good that I can tell you is that within 3 or 4 days of the storm, there were PODs (Points of Distribution) staffed by the military-National Guard, etc. where people were able to pick up bottled water, ice and MREs. I can still hear the helicopters that were overhead all day delivering supplies to drop off points. Soon after K, there was the Red Cross and church groups offering other supplies and items maybe a hot meal, hamburger, hot dog, fresh fruit and vegetables--that was amazing to have after days of canned food.
There were trucks and trucks from groups that sent household goods and clothes. Now one lesson from that is that it would have been much better to have had gift cards and $ as many of the clothes sat in open parking lots for weeks and ruined. That was sad. The local
Walmart in my area was able to open within a week. Shelves were not stocked, but there were things people could buy and use. And after a week or so, people would have been able to drive out of town to get what they needed if they had an automobile, gas and $.