Myntra.com — Order status showing delivered but I haven't get it

I have ordered an jacket. But due to of some reason I have to leave for Jammu and in Jammu there is no signals of prepaid sim card. So the day on which order should be delivered my phone number is out of coverage area so the dilivery guy can't even content me. Still the has been delivered and when I as to Myntra customer support they are saying that the order has been delivered by sharing OTP and that is not possible at all.