<prompt> Human: Comcast made an error on my bill when I closed the account. I was assured I had paid everything in full however I received a bill for 5.52 five weeks later. They will not remove the charges even though it was their mistake and I have the receipt saying I paid in full. Are there any other options besides giving in and paying or being stubborn on principal and having it go to collections? I know 5 is a trivial amount but they really are the worst company ever. I have no way of knowing if they made an honest mistake in calculating the final bill, the new charges are wrong or they are intentionally adding new charges, no person I have spoken too can tell me.  <response>: Youll probably have to go to one of their branches with the receipt stating you paid in full. If the initial customer service reps cant help you, ask to speak to their manager. 