Non working Ring Doorbell Pro?

It looks like my Ring Doorbell Pro is on the fritz, no power, flipped the breaker to make sure it was ok, still no power. My other Ring Doorbell Pro's and Ring Cameras are all working. When I called into support, they said that I have to have a Pro Power Kit installed for this to work. I was puzzled as I didn't have any Pro Power Kit when I bought my three Ring Doorbell Pro's. So they are sending one. Now when I look at the instructions on how to install it, it says I need to hook it up to my Internal Doorbell. As I stated on the phone with support, I have no internal doorbell, so what am I supposed to hook it up to. My other two Ring Doorbell Pro's are working just fine, I offered to sacrifice another working Doorbell and move it to the location of the broken one to prove the power was ok, but they were adamant that I have to have a Pro Power Kit installed. What am I supposed to do?