The 15% fee only applies to opened electronic items.
From the above link:
Restocking fee
A restocking fee is applicable in some product categories, unless you are a Reward Zone Program Premier Silver member, the item is defective, or the fee is prohibited by law. The restocking fee charges are:
25% for Special Order Products, including appliances
15% for opened notebook computers, projectors, camcorders, digital cameras, radar detectors, GPS navigation and in-car video systems