Remove your iStockphoto account

 

 iStock is an online royalty free, international micro stock photography provider based in Calgary, Alberta, Canada. The firm offers millions of photos, illustrations, clip art, videos and audio tracks.

How to remove  iStockphoto account

It cannot be found in the Terms, Privacy policy or FAQ. That’s simply dumb. Finally, in their forums we found you need to send a removal request using the webform (see link).
Direct removal link: http://www.istockphoto.com/contact_ticket.php