50% off on official website?

so im looking to purchase my first pair of solovairs and im aware of the huge amount of scam websites out there. i checked via this subreddit i was on the right website (im on https://us.nps-solovair.com/?countrycode=CA). i have a promo code checker on my browser and was super shocked when the platform derby boots i put in my cart were 50% off with the code SOLOVAIR50. the original price on the website was 249 and they went down to 125. even the original price seems low; theres an stockist in toronto that has the same pair listed for 329 CAD no sales, so i guess I'm just confused. are solovairs prices listed in USD? why the 50% off discount?

EDIT: it's now saying discount not available to you, which it didn't do before. anyways will purchase at full price (was prepared to, discount code honestly made me sus I wasn't buying from the right site). also prices are listed in USD