Myntra just send you messages to your inbox by saying that you have 80% offer 90% offer from 8 pm to 12 pm. But when you try to buy something from that offer they will simlpy add Extra taxes and then if you check the amount and compare it to any other online shopping app you will see the same amount of rupees for the same prodcut.
They just give you Fake offers and try to fool you. I had bought tshirt of adidas from myntra from that offer but when I compared amount after adding their taxes it was same in other online app. and once your order you cannot cancel it. it means they just fooling peoples. so before buying anything just compare it with other online shopping websites. : )