common application fee waiver confirmation

<p>I mailed a letter from my counselor to some schools requesting for common application waiver as an international admission applicant but I'm yet to confirm the waiver is given because none of the schools has replied for over three weeks now.
the question is that
1. is the absence of reply a confirmation of approval? or
2. is there something else i'm expected to do for the submission of the common application?</p>