Should a P35 form or request have been issued?

I use the Basic Paye Tools for a few employers and, having seen the "carnage" (late filing penalties etc etc) from previous years, I decided to move one step ahead and, as soon as I was able, I started to file the necessary P35's and P60's, in advance of 5 April 2012.

All were successfully submitted and the necessary emails confirmation were received, from the Government Gateway.

However, in none of the cases, which I deal with, have I received, either from HMRC, or from client's, a formal request to prepare and submit a Form P35 for 2011/12.

Whilst I'm content in the knowledge that I have evidence on file, of the necessary submissions, I still would have expected to have received formal requests to complete these formalities. Is anyone else in a similar situation?