DK Hardware Supply review: Complete waste of time, they don't want your business

I'm an American running a business in Canada. We ordered $80 worth of product, that we needed quicker than we could get here. The shipping charge was enormous, at $350 for 4 spindly 8ft. pieces. They send me an email a week later saying that the shipping charges would actually be $750 to ship instead, because they could only ship through an international company. I called them and changed the address to Montana, so they could ship them domestically, and I'd just drive to pick them up. They messaged back to me saying the shipping charges would now be $800US. Absolutely ridiculous, it seems like they just prefer no business at all. What a waste of time