Aperture used to routinely email copies prior to sending out the hard copy --- have a look through your email archives in case there is a copy sitting there. Otherwise try the Aperture Trusts Department, who deal with legacy issues. Their email address is: IVATrusts@aperture.uk.com
My opinions are merely that .. opinions based on experience. Always seek professional advice.
IVA Completed 23rd July 2013 .... C.C. 10th January 2014 http://foggy.blogs.iva.co.uk