$30 rate increase for my Monthly Bill?

Concern moved here to the Billing help section for greater exposure to the Comcast corporate employees (The Digital Care Team) for assistance. 

Good morning @user_51481f I see how this could be a big surprise and I'm sorry to start your day off that way. Typically what I see for cost increases like this a promotional rate expired causing the services to move to a everyday rate. I would love to look into this for us to see if that is the case or if there is another issue. It's possible that I will have a new promotion as well that we can move you to and help keep the costs low. A quick way to check if it was due to a promotion ending is to check your statement, there would be a message indicating that a promotion is ending on this statement or last month.  

If you would please send me a direct message with your name and service address.

To send a direct message, please click on the chat icon in the top-right corner of the screen, and select "Xfinity Support" to initiate a live chat. 
Click "Sign In" if necessary
Click the "direct messaging" icon or https://comca.st/3J0ir1l
Click the "New message" (pencil and paper) icon
Type "Xfinity Support" in the "To:" line and select "Xfinity Support" from the drop-down list which appears. The "Xfinity Support" graphic replaces the "To:" line
Type your message in the text area near the bottom of the window
Press Enter to send it 

My parents bill has the same issue and it has become impossible to get the proper assistance.  I keep getting told to call back, call back the rate is changing in 2 weeks or on Monday.  Then it takes several tries to call or tried the internet call back (which did not work - it errored out) and still not much help has been given!  Super frustrating - customer service has just gone down hill!

My promotional monthly rate expired, thus it went from $50 to $75 a couple of months ago for a 400Mbps connection (Internet only). Should I expect an increase in my monthly bill in a near future?