Upgrading Phone - Billing and Upgrade page show different devices as my current device
I currently have a Pixel 4 and would like to upgrade to a new iPhone. On my bill, it shows the Pixel 4 as my current device. When I go online and select the "upgrade" option, the phone that it shows on my line is a Galaxy 8 (a phone I had 5 years ago).
Because the trade-in values are so much different, I want to be able to select my Pixel 4 for trade-in, but it does not give me that option.
Is there a way to change my device in the Upgrade section of the website? Or should I just go in to a store?