Transferred from Verizon, was told my phones would be paid off

I recently transferred my plan from Verizon November 6th 2025 on my mothers birthday over to Xfinity because of their promotion they offered me Internet service Peacock / brand new phone. Long story short, I got talked into switching over to Xfinity by the rep at (1902 Southgate rd Colorado Springs CO 80906) I was told by the Rep Xfinity would pay off the rest of the balance of both of my 2 phones if I switched and signed up for their unlimited plan that came with Internet peacock and new phone but just today I received a bill from Verizon for $1,321.51 which is the remaining amount I owed on both of the phones I transferred over. Can someone please explain to me what this scam is all about, and why instead of payment never being directly paid to the account credit/direct payment to Verizon? Please can someone tell me if this is normal for Xfinity to scam there new clients for such a high amount of money?

This needs resolved, thank you