I have had the same problems with missing e-mail - and the same lame response when I have contacted ihug. Three e-mails sent on Mon 30th and one sent wed 1st (Iwas with the sender when it was sent!) have not been received (these are the four i know about!!). All have basic attachments.
To date I have made four telephone calls and three web-based inquiries - and have one formatted e-mail response that did not deal with the issue at all!
Maybe Telecom are not so bad after all? (choke!!!)