I spend $1,500 with CP a month. My usual daily payment is approx $50-$60 sometimes less sometimes more. I started going to CP owned outlet. Very knowledgeable lady, but when I asked for few labels and CN22 forms, she told me to order them from CanadaPost and that she is on the budget and she is not my supplier.
I agree, she is not my supplier, but she could have it worded more politely. The dealers always give me bunch when I ask. Plus she has to attach those labels and give me free CN22 form anyway when I walk-in to send a parcel.
Why do retail stores do it? Did you notice the postal outlet is ALWAYS on the opposite corner of the store as the entrance? They don't do it for 4%, they do it for traffic 🙂