This day is black Friday, I want to monitor are at a discount, but after I place the order, it says order cancellation, I tried several times for no reason, in the account can't solve the problem, even with my friend's account and bank CARDS bought doesn't work, have appeared in the same condition, it wasted my whole day, dell should reflect on your own attitude, This kind of thing happened in my life makes me have no desire to buy Dell products. I will place an order for a monitor and R13 desktop at the same time next Christmas. If this problem has not been solved by then, I will choose ROG. Dell made me miss the sale. It's all Dell's fault. Dell let me down.