Here is my list, I applied 19 May. Has the mail been delivered? If so, they may be opening files still and have a large volume of people. I am still waiting to receive my CAQ. It takes at least 20 working days (Does not include weekends) to get, sometimes shorter. This does not include when they received it through mail, only when they posted they received it. But I believe there is just a lot of applications they're processing. Check out their website.
https://www.immigration-quebec.gouv.qc.ca/en/immigrate-settle/students/obtaining-authorizations/certificat-acceptation/processing-times.html It says it can take three weeks to get a receipt of documents.
2019-06-19
Receipt of your documents
We have received your documents. Their compliance will be reviewed as soon as possible, according to the order in which the applications were received.
2019-05-20
Opening of your file
2019-05-19
Confirmation of payment
2019-05-19
Acknowledgement of receipt of your application
