What does it mean when a creditor puts 'NA' as your date of last activity and how long will that stay on your credit since it is 'NA' for DOL?

NA stands for narcotics anonymous.which is a program that helps people stay clean.no matter what age,races,sex,creed,or religon.no matter what you used.weed,heroin,poped pills,drank achole.whatever.there are people who will help you to stop useing.like i said NA is a program that helps you stop useing,no matter what it is. NA stands for narcotics anonymous.which is a program that helps people stay clean.no matter what age,races,sex,creed,or religon.no matter what you used.weed,heroin,poped pills,drank achole.whatever.there are people who will help you to stop useing.like i said NA is a program that helps you stop useing,no matter what it is.