Couple years ago, before knowing about the credit boards, I got a call from a collections agency to the amount of only $100, I got spooked and PAID immediately on the phone

I had not paid because I thought insurance would have it all covered and I moved around a lot as a student so I might have missed the collection notices. The thing is I still have an old credit card with a very low limit and I can't seem to apply for any raises because of this. So the steps for me to try to get rid of the collections entry would be:
1) Opt-out
-Which I did, but this was done maybe a year to 1.5 years ago, does it ever expire?
2) Delete old/inaccurate addresses
-Should I delete ALL the addresses except for my current address? Would it impact on any of my existing bank account history?
-What reason should I give them for deleting my old address if they are ACCURATE?
3) Send Why Chat's PRE HIPAA MEDICAL DISPUTE LETTER TO CRA
http://whychat.5u.com/hipaadisp.htmlAre these steps correct? If so, can you guys answer those quick nagging questions that I have before I move forward?
Thanks.
This post has been edited by quadratini: Sep 28 2009, 02:44 PM