You need to call at 7:55am. Try again tomorrow morning. They might be checking your application for completion.Today I tried to call at 1-888-242-2100 (Canada Client Support Centre) to know the status of my application. After entering details about my UCI & XEP Number (which is also a EP Number), I heard a recorded voice that
"your application was received on 31Aug2020. We are pleased to confirm we received your application. We will update the status of your application when the process starts."
I dialed "0" to talk to the agent to know the more details about my file but due to high volume of call, line disconnected.