Call History doesn't work

I forgot to post an update here: I'm happy to report that my call history got fixed and is now working. Here was the sequence of events:

On this forum there is another thread on the same issue, and I posted on that thread that I was having the same problem, and I also sent a direct message to Xfinity Support. However I didn't get any response to either my post or direct message.

1. I began a new thread (this one) describing my problem, and at the same time I sent another direct message to Xfinity Support. In my direct message, I included information about my account — name, Xfinity account login, address of service location, and Xfinity Voice phone number.
2. The same day, I received a reply on direct message. I had a chat with a support agent on direct message about my call history issue. She assigned a ticket for my case, and asked for a contact phone number where I could be reached. She said that I should expect a phone call from a tech support agent.
3. She also asked if she could help with anything else. I said that I was unable to change the number of rings before a call is sent to voicemail. She said that she can update it from her end, which she did and it worked right away!
4. Two days later, I had not received a call yet. I left a message on direct message asking about the status of my ticket.
5. The next business day (Monday after a weekend), I received a phone call. We discussed my call history issue, and she said that she would escalate my case to advanced support. She also gave me an email address to send her a screenshot of the call history error message.
6. Two days later I received a phone call from the advanced support agent, who asked me to login and check if call history was now working. It was! It was the first time I'd seen it work.

Total time from the first direct message chat to resolution was about a week.

One comment I have about direct messaging — you need to keep manually checking to see if you have any new messages. My account settings here are set up to send me an email notification when I receive a new direct message, but I never had any notifications.