Golden Forests India Ltd — invalid account number

Address:	Chandigarh, Chandigarh
Website:	ttps://corpreg.karvy.com/services/gfil/claimform.aspx

While filling claim form for gfil, after entering account no, receipt no and other details it shows account no is invalid. I have entered it correctly as in certificate as a/c no. Ruc383471 & receipt no.00/z3/584765.

As a note in the bottom of the claim form, it says please prefix pre-printedalpha values as gfil note.
How the error can i resolve to submit.