Can't we download the same file within a gap of 7 days

I downloaded a file 26Q- Q4 of 2011-12 on 14/09/2012 Filed correction return.

Today i.e on 17/09/2012 again I wanted to do one more correction.

Did not get the file.  On contacting the call centre I was told that I can not download a file twice within a gap of 7 days.

I have to wait for ......

Is it true.  Has this happened to any of you.