I can completely understand the frustrations this may have caused you. I would recommend reaching out to 1-800-SAMSUNG (800-726-7864) for further assistance regarding your concerns.
Interesting samsung discontinue the note 7 after the recall, the issues with the battery and if memory serves me correctly Samsung Note 7 is close to being at least 8 years old, you got a collection item now, why would you think you are entitled to a refund for that now?, where was you when the recalling was going on?, I skip the Note 7 and waited on the new birth of the Note line up which is the Note 8 and I know I have had that phone for five years, so if you get a refund for a Note 7, let me know how, I got a Note 8 in excellent condition like new I like to a refund on it also or my Note 4 or my Note 9, so I will follow your leadership on the refunds ok
Keep your Note 7 as a collectors item. I know a few people who own them and use them daily on WiFi. I had one on Verizon paid cash for mine. Verizon refunded my money and didn't even push for the phones back.