The so called "black friday backlog"

Day 12 and I still have not received my purchase. These stores (Game, Makro, etc) are rated high but as a matter of fact they are just the same as the rest of china stores. I was not informed that I will not be getting the purchase immediately with payment. They now blame it on "Black Friday"... why do you have promotions and continue selling and accepting cash when you cannot cope with the demand.