Please forgive my pedantry but do you mean by this that not replying is not typical of your behaviour or that your behaviour is atypical amongst councillors in that you tend not to reply to correspondence.

The reason I make this point is that earlier this year I also sent an e-mail to you, as one of my ward councillors, about I problem I was then experiencing. Unfortunately the mail elicited neither acknowledgement nor reply. Perhaps there is a technical fault with the Lewisham Council server.

You'll no doubt be relieved to hear that I have subsequently managed to resolve the matter.