Sony not replacing unit as promised

After the usual copy/pasted response sent in response to all complaints by the Sony rep (Melissa Warren) I was sent a mail on the 20th of February informing me that the unit would be replaced \As a gesture of goodwill". I'm still waiting and all subsequent mails have gone unanswered.<br> <br> I can't say that I'm really surprised considering the amount of complaints that they've received from customers with exactly the same issue."""