I just received a letter from GC Services Limited Partnership Collection Agency demanding I send them $640.00 immediately for an unpaid speeding ticket from 21 yrs. ago. I have no paperwork now, but I DID appear in court, paid the fine & attended traffic school. This letter threatens to: garnish wages, take personal property, etc. The letter states that the DMV has been searching for me, and since all the previous attempts to locate me have failed, a civil money judgement against me was issued. I have been registering my vehicles and renewing my driver's license without any problems for nearly 30 yrs. If I never went to court, a warrant would have been issued long, long ago. I have never been contacted about this before. It is a scam!!!!! How do I proceed?