Outstanding Citizens One Loan and upgrade through ATT
I purchased my daughter an Iphone 7 during January 2017 through Apple using Citizens One Loan. The installments were for 24 months. I've made every payment on time. In April 2018 recently upgraded to an Iphone 8 by going to the ATT store and trading her Iphone 7 in for the Iphone 8. It was my understanding that the Citizens One Loan would go away since she is now under a new payment plan through ATT. However, after logging into my Citizens One Loan it still is showing a balance and monthly payments through December 2018. Why was the Citizens One Loan not paid in full? Is it because she went through ATT for the upgrade? Please help me understand the relationship, if any, between ATT's Next program and the Citizens One Loan program through Apple.