@sid8tivePS: For return, I used FedEx. You can generate an inward/self-addressed shipping label after creating an account on the FedEx website and linking a valid credit card. Choose any date as the shipping date since the label is valid for a year or so anyway.
when creating the return label, did you use the same PO box address as the From address? and for phone number did u you use (613) 944 4000