Wrong order delivered

I went to the store last week Monday to buy two Blue Newton seats. on Saturday, two beige seat were delivered. I wasn't at home to receive the delivery and my mom signed for them. on my return, I immediately contacted the sale agent to make him aware of the error, he said he was going to sort it out and come back to me. I called him on Sunday morning and was told he would be in at 11:00, I left a message for him to call me. I called again after 11:00, he said he did not get my message and told me that the warehouse will only open on Monday, he would call me then. He called on Monday at 10:52 to say he had sent a request to the warehouse to say the order must be collected, and promised to call me back yesterday to let me know when will the collection and delivery happen. I am still waiting. I acknowledge that people make mistakes and he did state that the seats were new and a wrong code might have been used. I am sitting with 2 seats that I do not want and not getting any feedback from Rochester as to when are they going to collect and deliver the order that I paid for. I need to make arrangements with my employer for me to be home when the delivery happens, in case they deliver the wring seats. I am so annoyed

Regards, Lorraine