Unresolved Billing Discrepancy

Hello

I need to escalate an ongoing issue to someone in your Accounting or Billing department. In February, an ACH payment was made on your website for my company's monthly bill.  Somehow that one payment resulted in three charges for the same amount posting to the company's bank account. We advised our bank to allow one of the charges and reject two.  As a result, the initial payment was reversed on our Comcast account as if no payment was made at all. I attempted to contact your customer service department and spoke with several representatives from March through June who submitted several support tickets to resolve. After no help was provided, I escalated the issue to your escalation team.  Marilyn Mae in your HQ Accounting Operations team, exchanged several emails however I have not heard from her since July. I have been told over and over that the payment we made in February was returned by our bank however the bank confirmed the payment was made and an ACH confirmation was provided to Comcast to trace however I do not believe anyone tried to review that information.

Do you have a phone number where I can talk to someone about this issue? Preferably someone in your accounting department that has the ability to access bank records to trace payments.