Closed account in Sept 2024 with $0 balance wrongfully sent to Sequium collections

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Hello,
I am reaching out because I closed my Xfinity account in September 2024. When I cancelled, I spoke directly with a phone representative who explicitly confirmed that my account was entirely paid up, settled, and completely done.

I just received an automated alert stating that a balance was sent to Sequium Asset Solutions. I was assured my balance was $0 upon closure. I need a member of the official digital care team to please review the notes on my account from September 2024, correct this billing error, and recall this file from the collection agency. Thank you.