I have a quick question. I have a very old debt...6 years 5 months for 300 dollars. It was an old medical bill. Today I got a letter from Gulf State Creditors saying that they would settle the debt for $0.00. It said to send that amount and the debt would be cleared. Yes I know it was a typo on their side, but technically could I use this mistake as proof that the debt is infact settled?