Myntra.com — wrong product delivered and not received the original yet

I placed an order for a bag around 29th april and was promised to receive the order in 4-5 days. The bag i received was not the one i bought online. Now this baffled me as it never happened before. To top that, the delivery is so irregular in delivering the order. I was supposed to receive the bag today but the guy didn’t wait and switched locations without informing. So i keep wasting my time like that.