Regardless how well the speakers you purchased were packed, the seller owes you a refund immediately. This buying and selling online is not risk free.
As a seller I learned very early the importance of proper packing when I sold a very heavy amp without original carton. Thought it was packed well but I underestimated UPS's ability for destruction. I refunded the buyer as soon as the amp was out of his hands.
One more thing, I have neither bought nor sold floorstand speakers where shipping is required. It is a hassle, especially when selling but your story is the reason why. Good luck with this transaction.
As a seller I learned very early the importance of proper packing when I sold a very heavy amp without original carton. Thought it was packed well but I underestimated UPS's ability for destruction. I refunded the buyer as soon as the amp was out of his hands.
One more thing, I have neither bought nor sold floorstand speakers where shipping is required. It is a hassle, especially when selling but your story is the reason why. Good luck with this transaction.