Defy washing machine

I bought a defy machine machine on the 23th of July and on the 26th i went to the store complaining about the issues i had with the machine and on the 27th they send a technician to my house which checked the machine and confirmed that there was something wrong with the machine. I went to Limpopo and when i came back i tried to use the machine only to find out that the machine is still doing the same thing. I went to the store and the manager called defy to log another call and on my way out she walked me to their display machine and was also surprised that the machine is not doing whats is supposed to. The second technician came to my house the next day and said that that show the machine was programmed. To my surprise the 2 technicians gave me different information and the manager at OK. The manager called me the next day and told me she was going to send the store sales rep to come and have a look at the machine. The sales rep came to my house on Friday and took the pictures of the machine and later the manager called me to say that they agree to take the machine back. This morning we took the machine back and she said she cant take it back because it does have scratches inside. I told her that's because the machine was tested and scratches caused by clothing buttons and zips. I expect to get the new washing machine as promised and its not my fault that the sales rep did not check the machine inside.