There is no "right" to charge storage fees. If the terms of sale of the item provided for storage fees in the event of non-delivery or interest for late pick up and payment, etc., then those could be charged per the agreement or terms. Or if you had acted badly in some way (intentionally not picked up the tub to make the seller store it for you for free), the seller *might* be able to sue you to recovoer those costs--but he'd have to take legal action to do so and establish his right to them, were they not in the contract or agreement of sale.Furthermore, even when someone has grounds to charge storage fee, unless they were set by agreement, they must be reasonable, and $2k for a few weeks is not reasonable. Also, unless a contract provided for "default" (or something similar) in the event of nonpayment, the seller could not make you default on fees, though he could later seek them. Finally, no one may seek reimbursement or compensation for costs incurred by his own actions, such as by not cooperatinng on the pick up or scheduling.