Replacement / Repair: 12 Months for Prepaid Customers and 6 Months for COD Customers Replacement Warranty. Activate your warranty at www.nukaichau.com. It is necessary to get warranty activated within 15 days of placing the order by. No Warranty claims shall be entertained if customer does not get warranty activated within 15 days for whatsoever reason. Replacement shall be sent to Customer's address once defective item is returned.