A Zone Medical Product is considered DOA if it shows symptoms of a failure, or is discovered to be broken or defective when first taken from its packaging. A Zone Medical Customer Service Representative will provisionally determine whether the Product is DOA. Where a Product is provisionally determined as DOA we will arrange to provide a full refund or a replacement product, depending on your choice. Where Zone Medical has provisionally determined that a Product is DOA, return shipping will be arranged at the expense of Zone Medical. If the Product is deemed by Customer Service NOT to be DOA, and is not covered by a warranty, Zone Medical may refuse to replace the Product or give you a refund for the Product. When a Product is replaced, your replacement Product becomes your property and the returned DOA Product becomes our property. Replacement Products are provided with the same warranty as the returned Product. When a refund is given, the returned DOA Product becomes our property.