Did you get confirmation email from them or you called. I submitted requested documents on July 2nd to the email they provided but never get any confirmation email. I called the other day, the agent told me they got the email.i had additional document request on Jun 21 IMM5669 which they confirmed was received on Jun 24, which was requested to be submitted within 30 days. so if the theory that they will review in 30 days is true, hopefully they will review my file on Jul 21st. Will wait it out and see next week