I have wrongly accepted a demand which was issued in 2013 for the IT period 2009-2010. I was expecting a refund amount and I was in an assumption that this demand is for the refund. I later noticed all my refunds till now are going towards the outstanding demand and this incurs huge interest component aswell. I have all the documents available to prove that it is a wrong demand. Please let me know what actions I need to take to get this addressed.
Since it is an old demand will the IT department be okay to accept and documents submitted now?