Other iUP iPhone XS and Keeping Old Phone

[mrt209]

I'm in iUP and have the iPhone 8. Phone still looks brand new and has no issues. I am thinking of paying the phone off and giving it to a family member, and getting the new XS for myself.

If I preorder the XS, does the loan for the iPhone 8 automatically get closed or whats the best way of keeping the old phone and getting a new one?

Thanks

Edit: Found the answer, if anyone wants to the same, just don't send back the phone and they'll charge you the remainder.

Prompt Return of Financed iPhone. If you exercise your Upgrade Option and do not return your original Financed iPhone as directed by Apple within 14 days, your original Installment Loan will be reinstated and you will be responsible for any missed and/or remaining installment payments, as well as any installment payments under your New Installment Loan.