“Notice of Production” & “Certificate of No Objections to Production”

I have a civil case judgment and the creditor is asking or requesting to pay them for the interest and cost of the claim that was payed already. What happened was that the garnishee in this case the Bank I used to have in the past did not responded accordingly to the garnishment and become a debtor, they, the bank paid the debt but did not pay the interest, the interest because the case the judgement is from 2005. Obviously I did not know anything about this problem until last year when the bank notified me. Now, two days ago I received the Information Fact Sheet form to fill it out. Also looking at the dockets I that something else is come along the way a “Notice of Production” & “Certificate of No Objections to Production” I have no clue an idea what this is all about. what I know so far the claim is coming form a privet investigator, they are no lawyers of any kind and I am afraid this people can create a mess.