sometimes you have to take responsibility for your own actions and their consequences
This statement should be true equally for the buyer and the seller. Each has a responsibility to uphold their part of the transaction. The buyer has a responsibility to pay the seller and provide shipping information, and the seller has the responsibility to pack and ship the item, hopefully well enough to arrive without destruction.
Obviously, the seller did a piss-poor job of packing the item, and it's most likely their fault it arrived broken. Hopefully he learned from his mistake and will take more care in the future, nobody wants to be bothered with refunds and returns.