that's exactly where I am kind of confused too, if I am using IMM 5476 and declaring myself as representative, shouldn't I need to apply from the link
https://prson-srpel.apps.cic.gc.ca/en/rep/login rather than
https://prson-srpel.apps.cic.gc.ca/en/login
as they have mentioned in the invite doc as following:
```
For the 2022 intake, you and the parents and grandparents you want to sponsor must submit your complete application online through the Permanent Residence Portal (
https://prson-srpel.apps.cic.gc.ca/en/login). The application must be submitted by the principal applicant (your parent or grandparent) or by an authorized representative on their behalf. If an authorized representative is submitting the application online on behalf of the principal applicant, the authorized representative must sign in to their Representative Permanent Residence (PR) Portal account to do so (
https://prson-srpel.apps.cic.gc.ca/en/rep/login).
```