Intex Mobile / Intex Technologies — Sim slot not opening

Address:	676519
Website:	www.snapdeal.com

I had placed an order vide order no [protected] for intex cloud flash 4g phone on 16.01.2016 and phone received on 21.01.2016. It is seen that that the sim slot of the phone is not opening. hence i contacted the customer service center on 22.01.2016 and they told me that the item can be replaceable. on the advice of the customer service person i had sent the item on 27.01.2016 through Blue dart couriers along with invoice and DOA certificate. but the item is not received by snap deal. the item is sent on the advise of the customer service agent. what i can do for replace the item. if