Received multiple collection notices from credit protection service that money was owed on an account with Comcast. Received a call from credit protection service on the phone, hostile call which he demanded money in the form of credit card to settle a debt with comcast. Notified Comcast account was listed in good standing and closed and even received a check from comcast because of overpayment. Comcast was suppose to do research, however, 5 weeks have passed with 3 more notices from Credit protection service! And another call to comcast and another rep passing the buck with another research ticket on an account that is paid in full and is in good standing.. Credit protection company should have there license revoke and Comcast should have a legal fine imposed for dealing with these people.