Cable Cards Deactivated by Xfinity Customer Service

On June 20th 2025 I called customer service to see what options I had to reduce my bill.  I explained that I had Tivo's and cable cards.  The customer service person told me that I could change my service to a newer promotion without impacting my Tivo's.  I asked him to make sure that these changes would not impact my Tivo service.  He told me there would be NO impact whatsoever.  A few hours after the change was made, I noticed that none of my Cable Card devices were operational.  I've been on the phone for more than 6 hours talking to various teams to try and restore my cable cards. The bottom line is that the customer service person made a mistake.  The changes they made did impact my Tivo units because my 5 cable cards are no longer operational.  

I've been a 25+ year Comcast customer and now I don't have cable service because of a mistake from the customer service person. It was clearly documented in my communications that I asked them to make sure that these changes would not impact my Tivo devices.  Now I'm being told there is nothing that can be done to fix this problem that they created.  How is it possible that I'm being impacted by the error of the customer service agent?  This is not how customer service should work.  I called in to get help, but now I'm [Edited: Language] because of the customer service persons misinformation and lack of understanding.  

Please help me restore my cable cards back to where they were less than 16 hours ago.