I applied for PGWp extension on Dec 4th 2024 and in April 2025, I called IRCC and the agent that picked the call, stated that PGWp extension must be via paper application, and asked that I withdraw the online application and apply via paper
I did and posted it via Canada post. Afterwards, I did a webform to IRCC to withdraw and or cancel the online application. IRCC emailed that the presiding visa officer for my application had been notified of the withdrawal
Am waiting for further update on either the online or the paper application
So if you are extending your PGWp, pls do not apply online