UTILIZATION OF EXCISE INVOICE ALREADY DONE

Dear Expert,

I am transferring one  'By Product'  from one manufacturing plant to other manufacturing plant.

Process:

STO Purchase order (ME21N)

Outbound Delivery  (VL10B)

PGI (Vl02N)

And then  excise invoice through J1IS  with Transection Type - OTHR , and taking duty values  Zero on 28.03.2014

Billing is not done as business don't want to make condition record for this material type.

Now due to  some reason the material remain unloaded in supplying Plant only and now when we are trying to reverse  the excise invoice through J1IH the error is coming  " UTILIZATION OF EXCISE INVOICE ALREADY DONE "

Even in Header Table  " J_1IEXCHDR"  also the invoice Status is showing " Posted" and Cenvat Utilization Status is showing " Complete "

Question 1

How the excise invoice with only Base value and all other excise duties were ZERO can be  utilized ?

Question 2

And if it is possible then please suggestion how I reverse that document in system.

Regards

Gaurav Maheshwari