You can find direct contact information for the IPSOS team on the ShopMetrics site. Here's how to do it:
1. Login
2. Click on "News" on the lower left hand side of the screen
3. Click on "Team"
4. Scroll through the contacts until you find the person who has responsibility for the project you worked on (it lists their name, email and the programs they run)
5. Take the email you already sent to the general email box that no one ever answers, forward it to the contact you found in Step 4 and ask them to help since you didn't get a response to your previous message.