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Mine lowered my score when we were taking out comments from disputes.
I have 30 day lates from last year that will not hurt me.
is it possible to good will that late payment off. It seems to have been extenuating circumstances. Hopefully they will remove it.
Are you getting a VA loan?
Screw the cc's, once this is removed you will get tons of points, I'm sure it's really dragging down the scores. What are the score?
Good Luck.
Just don't give up. Call every day, and call at different times, and talk to different people, and try to talk to a manager...you can even email the CEO. Do whatever it takes. Beg, Plead, Grovel. I have done this many times and I have good success on 10+ collections. The two that haven't worked are Sallie Mae and the Dang Unique National Collection for 46 dollars for late library book.
You can even try calling the finance guy who sold you the car. He (hopefully) remembers you, let him know you are certain to come back to the dealership when the next car is needed - that will give him some motivation to do what he can. I'm sure he can call in a favor.