Myntra.com — the product is showing delivered but haven't yet received

I have ordered a desss from myntra which i haven't yet received but its showing divelred. I had already paid for it i tried to connect with the dilivery boy but he doesn't respond well and sometimes his phone is switched off from last week m trying to contact in myntra as well as the dilivery boy but all in vein its taking much time from normal and is not fair,.