You did it correct. All you can do is wait. Assume you have not been working. You are within processing times of about 4 months so you should get response in or around mid October.
If your study permit expires before you apply
If you don’t change your status to visitor and your study permit expires, you have
up to 90 daysafter your study permit expires to apply for a PGWP and restore your status as a student.
To restore your status as a student, you must
- apply online for your PGWP and pay the correct fee ($255) and
- pay the fee to restore your status as a student ($350)
You can’t work until your study permit and work permit have been approved.