All Car Audio products that are a custom-built-item and are non-stocked: upon placing your order, your card or Paypal account will be charged. If you decide after placing your order that you would like to cancel, you will need to contact us via email to cancel your order. If your custom-built-item has not yet begun to be manufactured you will be charged a 5% processing fee for refunding your payment. If your item has begun to be manufactured, or is finished, but has not shipped, you will be charged a 30% refund fee. If the item has already shipped, you will be charged the 30% refund fee plus all applicable return shipping costs. SSA SUB WOOFERS: Please view our separate warranty policy (below) regarding defective products, or products in need of repair. PLEASE KEEP ALL PACKAGING MATERIALS!