How do I talk to billing or payment dept [Edit]

I have credits coming for a phone that I was charged for. They told me 6 months at $50.00 per month. I got it for 1 month, then it stopped. Meanwhile, I left Comcast because of the high prices, bots, and people that hang up on you. Now you still went into my account and took $75.95 out for service that I don't have. I'm not looking to make a federal case out of this; I just want my money back. You had no problem shutting me off when I could not pay. I have no recourse but to hope and pray that you will pay me back [Edit: "All Caps"]

[Edited: "Personal Information"]