CableCard Re-Pairing

Hello,

I'm aware that CableCard support is currently limited. I'm looking for assistance in re-pairing a previously working CableCard in my Tivo unit. The problem, the TiVo's power supply stopped working and I replaced it, but after it was replaced and I rebooted the TiVo unit the Data ID number had changed from what it was previously and I can no longer receive any channels.
I tried the website hxxps://cablecardactivation.xsp.comcast.net/ to re-pair the CableCard to the TiVo. The card is listed on that Xfinity site but when I enter the new Data ID it fails every time I've tried.

My CableCards remain listed on my account and two of the three I have are working perfectly at the moment. I'd appreciate some help getting to someone who knows how to re-pair the one card. 
I have all the information that's needed to do so. 

Thank you.