<human>: Condense the text into a few key points

I have a small mountain of debt I am trying to deal with and finally in a place to do so. I got my annual credit report and realized I have a few accounts with the same bill collector.

My question is:

If I contact them about Account A- that's less than a year old, but they look me up and find that Account B has been in collections for almost 7 years... will that 're-start' my 7 year debt back to day 1 again? I was planning on waiting out the ones that are almost at the removal time frame- because they are ones I just cannot afford to pay off.
<bot>: I have a few collections accounts with the same agency and want to pay on one (newer) not the older one.