Today XXXX/XXXX/2015, I was instructed by XXXX to conference them in with First National Collection Bureau XXXX Inc. to confirm that I paid my agreed settled amount of {$230.00} in full. The First National Collection representative, XXXX XXXX, confirmed that the debt was paid in full, but went on to say, to myself and the XXXX representative, that I need to pay more than the settled amount. Is this legal for First National Collection to request more money, especially since this disputed debt exist due to XXXX attempts to bill for an additional service that I never asked for?