Can't get license key to activate 2nd computer

On july 28 of 2011 I purchased a renewal license for 3 pcs. I did not have access to one of them until now. When I try to update thelicense on that computer I am unable to do so.

I can’t find the email for the current license, but only earlier ones.

I would just buy another license but then I’d have registrations for 6 computers at two different times of the year.

How can I get my 3rd computer licensed again?

Thanks

try this

http://www.avast.com/en-eu/resend-license-paid.php

or the Sales Enquiries
http://www.avast.com/en-eu/contacts