We are Authorized Channel Partners of Hikvision, CP Plus, Dahua Security Products and we sell only genuine product. These companies do not provide replacement of any product even for DOA. Therefore, we do not provide replacement, we only provide warranty services. As for example, you faced issue with an CCTV, please bring it to the nearest service centre to avail warranty services. In case of product manufactured by “CAMNEX”, Buyer have to courier us the Item at his own cost. We will replace /repaired that product and deliver the same by courier at our cost.