Hi,
Your receipt Number will allways be on the left side of your letter. below that you will find your Receipt Date(RD) and below that U will find Notice date(ND)
so the receipt number will have a number which starts with EAC so just call INS and u will hear a recording continue pressing 1,1 until u hear
Please enter the 13 character eac number
then type the Receipt number and u will know the status of u'r case.
It's that simple and let us know if you got it right.