Samsung Galaxy note 20 ultra

Only 2 months old carrier is at&t. I paid 1300 for it but traded in my other device and was suppose to get 800 credit and they had 10 reasons as to why I didn't do I shut my line off. Just testing the offers and seeing how much I can get. Make offers please it's 5g 128gb absolute perfect condition. Plus has 10 to 15 cases