If you didn't buy from oculus.com or amazon.com (maybe bestbuy, did they do online?) then it was a scam. There's a bunch of fake sites that look official but have different URLs (such as oculus-vrsale.shop) that promise big discounts (like 75%), they are all scammers (and more pop up as fast as they get shut down).
Hey, we're very sorry to hear this has happened and we strongly encourage you to work with your financial institution in regards to this. We did not have a sale, and our official and only website to buy product directly is oculus.com. You can also click here and scroll down to 'Find a Retailer' to check out our list of authorized third-party sellers. We do not and have not operated any websites under any other addresses.