Oh the English language

So back in say March I was sending my brothers some packages from the Netherlands back to Canada, mostly the packages included delicious stroopwafels. That is, however, beside the point.

I had to find a store that I could buy packing materials and pay for postage, etc to send the aforementioned  packages.

So I found a TNT shop, went in, picked out two large envelopes and proceeded to ask the attendant if I should pay for the package then pay for the shipping or if I could address the envelopes, pack them, and then pay for shipping altogether.

At this point the sale lady looked at me and said "We don't ship them, they will go by air"

I paused, thinking for a moment, nodded and rephrased my question.

Oh English, you are a silly thing.