Overpayment and requesting refund

Hello,

I've been looking for some form of recompense from an almost 3-year billing error.  We were contacted by Sales in 2019 for an offer to upgrade our Internet bandwidth in one of our offices.  We went with the offer and the upgrade was ordered.  However, after the upgrade we continued to receive invoices for the old account.  My guess is that we figured there was an issue where we were billed in arrears and just needed to catch up the old account and that any unnecessary bills would cease.  The invoices for the old account kept coming in and we kept paying them and it just became habit.  The two bills did not arrive at the same time and our A/P department figured we may have ordered redundant Internet lines for this office as we had done for other offices.  In any event, the bills kept coming.  And we may have continued to pay them had we not ordered a redundant Internet connection from a different source.  At that point, I contacted Comcast Business to discontinue the invoicing for the old account and see about a refund for the unnecessary invoices for the old account.  As a matter of reference, the old account was not associated with any equipment or static IP addresses which I thought would be a red flag for some part of the billing system.  These were invoices for literally nothing.  I began my conversations with Comcast in August of this year.  Below is a synopsis of those conversations.

Original account number – [Edited: "Personal Information"], was replaced in October 2019

New account number – [Edited: "Personal Information"]

Original ticket number – CR [Edited: "Personal Information"]

08/10/2022 – Spoke to Sandy then Samantha of the Account Retention group

New ticket number – CR 050 889 797

Ticket from Disconnect Document – [Edited: "Personal Information"]

Escalation ticket number – EQR 360 16

08/18/2022 – Spoke with Account Retention group rep, told process will take 30 to 60 days

08/18/2022 – Received Disconnect Request Form, CR [Edited: "Personal Information"], DocuSign and returned

09/26/2022 – Called and spoke with Customer Service rep.  So far, a credit for $383.00 has been approved.  It appears that more is coming but we don’t yet know the amount or when it will be released.

10/28/2022 – Called and spoke with Alicia Serrano.  The $383.00 credit from 09/26/2022 has been applied to the Lisle account as of 10/06/2022.  The rest is still in work.  Alicia has escalated the matter to the next level in the chain for an approval of a more equitable settlement.  CR[Edited: "Personal Information"]

11/10/2022 -  Spoke with Junior (?) in the Retention department.  He is to reach out to Ms. Serrano and her supervisor to find out the current status of this in terms of what, if any, account credit is approved and when it will be received.  Junior is to call me back no later than Noon tomorrow (11/11/2022) with an answer of some kind.  A new ticket number, CR [Edited: "Personal Information"], was created from today’s call.

11/21/2022 – Spoke with another retention rep who told me that the $380.00 credit was the only credit we would receive as the department that handles such matters has rendered their judgment in September.  Now we need to pursue other avenues for recompense.

I don't know if this is common practice with Comcast but I do know that a $383.00 credit isn't sufficient to address a three-year overbilling.  We will see what kind of response I get from this.