INCOMPETANCE

On the 29th of Feb I spoke to Shirelle Jacobs and asked for a settlement amount. She then failed to tell me that the installment for the month of Feb is not uncluded in the settlement amount. I then called and had to hold close to a hour to speak to a manager and I was not given a clear explanation to why I still have a outstanding balance after I paid the settlement. Do they not understand the meaning of the word SETTLEMENT. I am very upset and disappointed I went out of my way to settle my account, I CAN NOT BE KEPT LIABLE FOR SOMEONE ELSE'S INCOMPETANCE!