Thank you all for your replies. Sorry for the delay in response, I'm out of state right now and limited access to internet free time. I did write the letter myself, but used the wording found from these boards. I don't have the file with me right now, but I do know that they sent a letter back that explicitly said they would "submit a request for unconditional deletion of the account from all reports".
I am somewhat heartened to hear that this can take some time and might only appear as "paid" temporarily before deletion. I'm hoping for that alternative! I'll keep checking, and if it's not gone soon I'll keep trying to contact the CA and if that goes no where I'll look at small claims options. I have no clue what I'm doing in that regard, so I hope it doens't come to that.
Thanks again everyone, I really really really appreciate the support and advice!
Starting Score: 7/24/12 EQ FICO 645, TU FICO 636, EXP (CCT) 638