There is no way for you to correct this other than deleting the duplicates manually. So I am going to escalate this to the forum admins for follow up and see if they can do this from the Comcast side. you should get a response here in this thread.
Hi zmcnevin. I don't have any tools that remove the duplicates on my side, but I can assist you with getting an Advanced Repair ticket opened and escalated to see if they have any options. To get started, please send me a private message and include your full name, service address, and account number so I can access your account.