Internet Billing Increased by $100?

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

Hi there, @ScotR415! Thanks for reaching out to us here on the Community Forum. The most common reason that your bill would increase is because you may have come off of a promotional rate. In the spirit of transparency, we provide a listing of the active promotions, the amount saved, and the end date on each and every billing statement. It would be under your services in green text. If you are doing paperless billing, you can check your statements with the directions here : https://www.xfinity.com/support/articles/view-xfinity-billing-history. Have you checked this out on your previous statement? 

I had a fraud experience with Xfinity Mobile. It took several months to correct it and my money was refunded by my bank, and Xfinity gave me many credits for the products I did not buy. Someone else orded them on my account. Everything was going fine until a received a phone call from Xfinity saying that I owe 118.70 in charges I am required to pay because they had to change my billing cycle. This money will automatically come out of my bank on Nov 14 2025. I can't stop it. They promised they would refund it on Monday Nov 17. I don't trust them. I never heard of such a thing. Has anyone else?