D'Addario strives to be a customer-centric company dedicated to producing the highest quality musical instrument accessories in the world. If you have purchased a D'Addario product that you believe to be defective, we invite you to submit a Contact Us form, selecting Defect/Warranty as Inquiry Type. We are committed to providing a fair resolution and hope that you will want to continue supporting our brands. Please note: only products purchased through authorized D'Addario resellers qualify for consideration. D'Addario reserves the right to determine appropriate support on a case-by-case basis and at our sole discretion.