ProSource of Northern Colorado

I recently purchase about $4000.00 in tile, #ES200271, from Prosource In Loveland, CO, for a project on my personal residence.
When I made the purchase, I ask the sales rep, Jillian Heath about returns for unused product. She said they would take back product in unopened containers for a 15% restocking fee. That seemed reasonable. I finished the tile Project last weekend, June 4th. On Monday, I took the unopened containers to the showroom at which time I was told that here would be a 25% restocking fee plus freight. I’m not too happy at this point. When I told the person behind the desk what I had been told, she was totally disinterested. That being the case, I let her know that I would never do business with them again. She pretty much just said that Jillian would never have said that and more or less blew me off. She did call the vendor to confirm the 25%, which they did.
At that point, she said she would work up the final numbers and email me the following day. I left the product with the gentleman in warehouse. No one got back to me, so on Friday, June 10th I called Prosource at which time I was told by the same person that I would not be given a refund because it was passed 60 days, by a little over a week. At that time I ask to speak to the owner, She laughed at me and said she wouldn’t give me the information. She offered to give me the number of the vendor. I let her know that it was Prosource with which I was doing business. She said that it was corporate owned, and would not give me any contacts. The franchise is owned by Doug Finch. I am attempting to get in touch with him but he has not responded. I've also E-mailed Howard Brodsky, the CEO of CCA Global Partners the franchiser. He has not responded.
At this point it is less about the money, and more about the principal. The amount in question is $332 after the 25% restocking fee. Prosource has the product in their warehouse

Rude condescending and refused to take any actions to stand behind salespersons commitments.