Usually all the products are checked by our QC team before being shipped. However, in a rare case of human error where either your product is defective or incorrect, please write us an email on info@romsons.in or call on our Customer Care number, 7070701513. Our team will arrange for a return pick up if your pin code is serviceable and give you an option of either exchange or refund against your order. Refunds will be initiated for the item that is wrong or defective, and not for any other product mentioned on the invoice.