meesho - recived fack return

we are online seller so we sell meesho, we sent two semi stiched suits for online delivery through meesho courier partner ecom express and shadowfax. Order ID: ***********_* and Order ID: ***********_* on date **/*/**** and **/*/****. but unfortunately it was customer return..so we recived return on */*/** and */*/**..before we open parcel,we shoot video while opened,we see that our dress is missing so we complain to meesho..but they rejected our claim,usually they pay for fack return or missing item.