Unlock device on my own bring device to Xfinity.

I terminated service with xfinity as the 1 year mobile service on us was active for internet set up, but internet could not be set up at my home for some reason as too far from the hub drop. I then was told I would have to cancel my cell service, so I ported my number out, but the device (Samsung ZFold 6) remains locked on xfinity network. Ive called set up tickets over and over and to no resolution. I need help on this asap... the imei shows clear, but xfinity network locked message. I need a manager or supervisor that handles this to please call me. I have two tickets and no one at xfinity knows how to handle this issue. I get bounced around several times and then the call drops as if your reps hang up on purpose as they have no idea how to handle unlocking a device. very frustrating.