If you go through PayPal or eBay, you will probably have to send it back WITH delivery confirmation before you get your refund. Make sure you show it's condition in the dispute and clearly state you must be reimbursed for return shipping. Usually the buyer is responsible for return shipping through PayPal (crappy policy) so I would dispute through eBay rather than PayPal. With the pictures and admission of improper packing from the seller you should easily be reimbursed for return shipping though. Once the package is delivered you will get your refund. If you are working it out with the seller without ebay or paypal mediation, do make sure to get Your refund and cost of return shipping before you ship it back. And definitely still get delivery confirmation.