Poor service at Cielo

I purchased chairs online Enzo stone vintage, when the chairs were delivered to my surprise it was the wrong colour. I called the sales department to inform them. They said I must log a query online. No one apologized about that and I requested my money back. They said they will refund me once the chairs are returned back to their warehouse. The chairs are collected last week Thursday and again I sent an email to Whitney Plaatjies saying that the chairs were collected and I attached the slips that were sign by my helper for collection. No one responded on my email until yesterday I got the email from courier company saying my order is on the way . I called the sales department to ask the. That none communicated with me that the chairs were received and now we will send your color. I said to that lady I spoke with it fine if the chairs are on the way I will take them . Whitney rep**** on my mail saying that they had Problem with their emails. When I checked with Triton about the order they said the order must be returned back . Now the store want me to send letter from the bank in order to refund me. I paid cash and the account that I used to buy those chairs is mine. Help me to get my money