Which number did you use to get IRCC to respond to you? The last time I tried to call, an automated message asked me to send an email as they are overwhelmed with calls.I submitted my online application last week, still no update.
I called ircc today to see if I can cancel my online application, and he said no. but he said I can send another paper application if I'm worried, and I might need pay the fee again tho. it doesn't hurt to send two applications, ircc will only process the first arrived one.