A client of mine purchased 65 sq ft of material from a private party from an online ad. They requested if I would pick up and deliver to material for them. Once they realized it was not enough material for the project they had in mind, they ask the seller for a refund, but the seller immediately went on the defensive. Is the buyer entitled to a refund since they never actually took possession of the product? The amount required for the project is 500 sq ft but the cost of this lumber was $16 per sq ft.