I sent it on
IRCC.COVIDPRTD-TVRPCOVID.IRCC@cic.gc.ca
They send the application number in the passport request email.
I have no clue where they process it( probably in Canada, not so sure)
I actually sent them 2 emails. One on November 24 and one on November 26( just checked my sent email)
I thought I sent the wrong subject format , that’s why sent the whole email again on 26th.
You will receive passport request in your promotions mailbox. It happened with everyone. So do check it.