Comcast Increased TiVo Roamio Card Bill by $8 and Says I have Two Cablecards?

Comcast sent me a pleasant mailing today about how they were charging me an additional $8.45 a month because they've been 'undercharging me' for my additional TiVo Outlet.

I've been charged $0 for my first CableCard (primary TV) and $1.50 for my addition CableCard (?) for years. I have a Roamio. I thought I had one card, but Comcast insists I have two.

I have two Minis, but that doesn't use any Comcast equipment.

One - how are they increasing my bill so much for my second Comcast...

Comcast Increased TiVo Roamio Card Bill by $8 and Says I have Two Cablecards?

Comcast Increased TiVo Roamio Card Bill by $8 and Says I have Two Cablecards?