Myntra.com — cod payment method unavailable

I've been purshasing by the option cash on delivery but all of a sudden i can't choose cod as my payment method to the pin code 673014. Fix the problem asap. As i've to purchase a product real soon. The thing is i've purchased from myntra last week with the same pin code and i've got the cod option but now it's unavailable as my bank account has some issues you've to make the cod option for this pincode soon.