If a furniture store refuses to pick up returned merchandise for several months is it considered abandoned by them

Bought some furniture from Ethan Allen several pieces were defective after 5 weeks Ethan Allen agreed with me then told me it would be several months for Replacements I told them to take the furniture back they refused I requested two more times they come and get the furniture they refused to respond I did a credit card chargeback got the money back now they started calling me and they want the furniture back. Am I obliged to give them the furniture back or did they abandon it when they refuse my valid attempts to return the merchandise. In my emails I told them I did not have the space to store their Furniture please come get it. In their last telephone message to us last week they said they would call the bank and tell them we changed our mind and we are keeping the furniture and to give them the money back