Need Written Confirmation of CBE Collection Recall After Payment

I am trying to resolve an outstanding $170 balance from a former Xfinity account that has been assigned to CBE Group and is currently being reported to the credit bureaus.

I contacted CBE Group today and was advised that if I simply pay the collection through CBE, they will update the account as paid but will not delete the collection tradeline.

I then contacted Xfinity directly and was advised that Xfinity can recall the account from CBE Group and that I can pay the balance directly to Xfinity. I was also told that after the account is recalled, the collection tradeline can be removed.

I am prepared to pay the full $170 balance directly to Xfinity. However, before making payment, I am requesting written confirmation that Xfinity will recall/withdraw the account from CBE Group upon payment rather than simply notify CBE that the account has been paid.

Can an Xfinity Support representative please assist me with confirming the recall process in writing so that I can resolve the balance?