Didn't recieved my copy of PGWP

[nevil16]

Hi, I applied for my PGWP and got approved in July. I still haven't received a copy of it yet, and while checking upon the form again, I realized I forgot to mention the unit number in my address. My study permit expires on 30th sept, 2023 and sin as well. What do I need to do now? I even submitted the webform but the response from them didn't helped me and instead they asked me to submit the form again.