I worked as a shipping clerk for a few years and this is my input to all of this:
If you securely packaged the item with newsprint, packing peanuts and bubble wrap, then taped up with proper packing tape you did everything right. Did you secure it enough to the point if you were to shake the box the item inside didn't move all around? Did you pack it in a box that was at least 1/2 size bigger all around so you can securely cushion the item? If so, you packed it correctly. If the item was damaged pursue them to cover it, or if you're just looking to get your money back, pursue it still. Speak to Customer Service and if they won't help ask for a Manager, then ask for his Manager, and so forth. Make a point to not be ignored.