If you applied for PR and a PGWP at the same time and your PR gets approved first, while the PGWP is still processing:
- You generally don't need to manually cancel the PGWP application. Members' experience is that it becomes automatically voided once you receive your Confirmation of Permanent Residence (COPR), since PR status supersedes the need for a work permit.
- Don't expect a refund for the unused PGWP application without checking directly with IRCC. The thread didn't confirm a refund process — if this matters to you, contact IRCC directly rather than assuming one is available.
In short: let PR proceed, and treat the PGWP application as resolved automatically once COPR is issued, rather than calling IRCC to cancel it yourself.