How to answer an interrogatory regarding a debt
We are being sued by a law firm for a credit card bill that we have that is marked "paid in full". We have the original bill from the credit card company, the problem is it's from 2008 and we are trying to figure out how we paid it so we can get proof of it being paid. In the meantime, we had to file an answer to the complaint, which we did claiming the amount was incorrect because it was paid. The law firm then sends us interrogatories, and we don't know how to answer them, as we are still trying to figure out how this bill was paid and have nothing to send them showing proof. We could use some help, here is the question... What, if any, credits, allowances or deductions do you claim to be entitled with regard to the account which is the subject matter of plaintiff's complaint? In answering this interrogatory, specify the amount of each such credit allowance and/or deduction and state in detail upon what facts you base the claim for each.
Oh, the law firm is suing for over $1,500... WHAT!! I hope and pray we can find how this bill was paid and get the proof, if not, what do we do? These interrogatories have to be answered in 30 days or they will file a judgement against us. Thanking you in advance for any and all your help.