Did you receive the submission confirmation PDF ? I submitted my application around the same time yesterday (May 1, 11 PM), uploaded all documents and did the payment. Got a message that application is submitted and a message in MYCIC for successful payment. But I have not yet received the submission confirmation PDF yet with the confirmation number. Please let me know.
Yes, I received it. I got two receipts automatically. The first one was seconds after I paid online (CIC online transactions: Through Ex-act Transactions Ltd). That was the web version. For the second one I received an email with a link to messages in MyCIC. This is the receipt PDF version with a Receipt Number. I hope that helps. Cheers