All complaints, whether received by e-mail, post, telephone or website are, in the first instance, handled by the Public Communications Unit, a shared service provided by DCSF, who log the complaint and pass the correspondence to the relevant official. The DIUS published procedure is then followed.
This procedure for dealing with the complaints received through all routes is published in full on the DIUS website
http://www.dius.gov.uk/about_DIUS/contact_DIUS/complaints.aspx