I'll head over to Canada Post as I have to pick something up anyway but I'm thinking they won't be able to find anything based on a receipt like that, I also contacted CPC to let them know what happened, maybe they'll be kind enough to give me the codes once they opened the package. I really don't care that much about the code so long my passport doesn't get lost in the mail! I glanced over the codes before I put the envelopes inside the main one so if anything I can try to guess the last three set of numbers, anywhere from 001 to 999 .I see only for first envelope used asap. Not the second one to be used by cic.
Bummer. Call them in morning.
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