Selling items on black friday sale--No stock-False advertising -Boost **** turnover

I bought 5 items via Superbalist.com in the Black Friday Sales Promotion. But I only received one of the 5 items today. No answer was given --on why no stock was delivered--i could of bought the item elsewhere ,now i lost out on the opportunuty and discount.i will not buy from them again--false advertising and selling stock at prices--of which they dont have stock My order umber was Order no: *** Order Date: 26 NOV 2021 why advertise for a item --when you Dont have ITEMS in stock. Was the sale captured just to boost revenue and turnover.