Call from a place identifying themselves as "Capital"

So I get a call yesterday from 888-405-1644 that left messages on my cell, at work and even called my parents...which I don't live with. They stated they were trying to process a complaint against me and needed me to call them. I tried several times to call only because I couldn't locate the number or name anywher and only got voice mail. Today I get a return call from a lady named Asia. She states that they have a complaint filed from cash supply on a "hot check" I wrote to them in 2006. The funny thing is it was from a bank I hadn't used since 2003. When I asked her to send me paperwork showing I had done this since I have no recollection of it and didn't bank there then she said that that don't have that info only the amount due and the creditor and they only process the court documents and if I wanted to dispute I'd have to dispute that in court with the judge...I told her fine, to send out the papers and would give them to my sister who was a lawyer since last time I checked the statue of limitations in Texas was 4 yrs. She was actually very nice and didn't get ugly with me but I found it odd that they claimed to have no info what so ever. Anyway, just thought I'd post this since I was unable to find any info and this might help someone.