Bad and unfair treatment.

My husband wentto Bradlowd vanderbijlpark to buy a bed on the 29/03/2018 then they said maybe the delivery will be on Saturday, but because of the holidays the latest will be Tuesday but still nothing came , he then went back to the store was promised before end of day today will have the bed but no call for arrangements for delivery. We then decided to call them asked for Thembi the sales person who assisted with the purchase, she explained that the head office sended a mattress that had stains so they can not give us that mattress, so I told her that Im will come tomorrow morning to cancel the purchase, to our surprise we receive a call for delivery when I get home to accept the delivery it's the same mattress that has stains. The delivery guy says the store said to them they made an arrangement with us but there was no such arrangement. I'm disappointed with the service I was given, and I was told if I cancel it will take +- a month for me to get my cash back, is this fair after the bad treatment I got from the store.