X1 Error XRE-00250

Chatted with Xfinity online yesterday around 5:00pm EST to scale back our TV services and remove phone service. Asked to please keep the primary box but to remove the other one. Since then, the cable box has been in a boot loop, is not appearing as receiving a signal according to Xfinity website, and is giving error XRE-00250 which Googling seems to be an account activation issue. We are able to access content on the Xfinity Stream app without issue but the box that worked perfectly fine yesterday is stuck in the error loop.

I attempted to call today as well as chat but was unable to contact an agent to assist. The refresh/restart signal was sent multiple times, and I also power cycled the box several times myself. I am wildly frustrated with this situation; changing plans should not break the TV box. Reaching out here to see if anyone has any suggestions to get our cable box working again as it's now been down for 24 hours.