Thank you SadaAE. I really appreciate your response.I applied for open work permit twice (in 2 years). First time I had to send a paper-based application because of some exceptions in my application and the second time was an online application. In the first application I did not receive any email or message that they received it. The only thing I had was a tracking code from Canada Post that the package was received by their office (I made the package signature required). The permit was mailed to me after 4 months.