The refund policy depends on the retailer that you bought your Sprindex from.  Contact your retailer for a refund.  If you bought your Sprindex directly from sprindex.com, you can receive a full refund (less $30 (USD) restocking fee) or exchange for up to 2 weeks from date of purchase assuming your Sprindex coil is in original condition.   You cover the shipping back to our closest distributor.