Thanks, I have contacted IRCC by twitter, their reply as below:Yes, I agree, you should apply again but also check that your passport is valid well past the extension date you are seeking (renew your passport if it is expiring soon to maximize the time on the OWP extension; they will not issue an OWP past the validity of your passport), and double-check that your contact info is up-to-date with IRCC. I would also then call IRCC and also send a webform explaining your details, that you received their first email but nothing since, and ask them what they recommend you do next.
Hi. All work permits facilitated through the TR to PR public policy were received in the mail at the end of October. If you were not contacted by IRCC or did not receive your work permit in the mail, you may still be eligible to apply online. Please see for more information: https://www.canada.ca/en/immigration-refugees-citizenship/services/immigrate-canada/tr-pr-pathway/open-work-permit.html#apply
so, I will do it right now.
terrible IRCC again.