Xfinity received but not processing my trade in

I have the tracking number showing Xfinity received my phone 1/14/26. It is not end of may and it only shows “trade in shipped” on Xfinity site. I have waited the 2-3 billing cycles plus some. I have called 3-4 times now and received 0 assistance in resolving this or locating the phone I sent. I kept getting told to call Assurant. I tried and I cannot even pass their automated phone system because it tells me my phone number doesn’t pull an order for them and hangs up on me. Can’t speak to a human and Xfinity is doing nothing at all. I have been scammed out of the $600 trade in promotion I was promised and Xfinity has essentially stolen my iPhone that I mailed to them in 5 months ago. This is the second time I have had this issue with Xfinity. I will never be doing a trade in with them again. Someone from Xfinity needs to call me with a solution.