So I called the IRCC call centre this morning and asked about our situation. The CoPR that I was talking about that I received on August 14 which my wife didn't receive, it was not the actual CoPR document, it was just a letter confirming that I am now a permanent resident. The agent that I talked to said that there is a note saying that they also sent a copy of the CoPR for my wife the same day they sent mine. The agent told me to check my inbox, spam folder, etc.. and I told her I already checked a couple times but we couldn't find anything so the agent told me that she is going to send a message to the IRCC office and tell them to resend the CoPR letter for my wife. I hope they will send it soon.