... 2003 $150 Rebate - Dept 6103-54 Offer # 9001 Box 58089 Oshawa, ON L1J 8L6 3. Photocopy your returned mail for documentation purposes (...Microsoft representative said that they give a little leeway on the submission date, so that should not be an issue. 4. Call back in...and I sent in my $150 CDN rebate before the expiry date of October 2006, but the Canadian office seems to have ...