I requested a trade in offer for my 2021 Model S Plaid that I had since mid August 2021. My Plaid has 11,293 miles Black/black 21" FSD and Tesla offered me $128,300. Is this a decent trade? I'm trading the Plaid for a Model X 7 seater which costs less than the trade in offer. Will Tesla send me a check for the difference or will it stay in my Tesla account for future purchases?