Don't expect a refund for those months. You were insured and if something happened to your phone during that time they would have paid out. No different then your car, you sell the car you don't get refund for the insurance you had before selling it.
Yes but the phone also had a recall and now a 2nd one. It's the least they could do, people were bringing in broken note 7's on the original recall and getting a brand new replacement. I'm sure, not all those people carried insurance.