Cost and freight charges is payable by the importer. The exporter pays the ocean shipping/air freight costs to the particular location. Example, C&F Los Angeles (the exporter pays the ocean shipping/air freight costs to Los Angeles). A lot of shipping carriers (such as UPS, DHL, and FEDE) offer guarantees on their delivery times. These are recognized as GSR guarantees or "guaranteed service refunds". This means that if the parcels are not delivered on time, the customer is allowed to a refund on the shipping cost. UPS, DHL and FEDEX make it very hard however for customers to determine which parcels are late and request their refunds, and thereby permit approximately 90% of potential refunds to go unclaimed. That amounts to over $1 billion USD per year in unclaimed refunds.