It's automated one . Usually they will take 3 to 4 days to reply you. If your question is a genuine one . Also if it's in normal processing time , the chance of getting reply is lessYour enquiry has been successfully submitted. We will get back to you with answers to your questions as soon as possible.
If your application is within normal processing times you will not receive a reply from Immigration, Refugees and Citizenship Canada.
Thank You.
They replied me this way immediate after submission