Complaint poor service

I bought a Defy DUF280 Met F320 upright freezer at House and Home in 2017, it is still under warrantee, I have loged a call with House and Home Witbank in April 2018, I speak to Rantho Hlapeng, he then arange for a Deffy technician to come out to my house to repair my freezer, the technician came and sead that they do not have spares for the freezer, and inform me to contact the branch and inform them to change my freezer. I did report it to Rhanto that informed me that he has to logg this with Deffy, ***, I contacted Deffy in June and speaked to Lukas who informed me that they need to replace my freezer, I then contacted Rhanto again, who informed me that he will arange for the exchange, this was before the 14th June 2018, when I contacted him again on the 2 July 2018 he informed me he will order it and he will deliver it on Saturday 14 July 2018 this did not happen. I then phone again on Monday the 16 July and Rhanto was not available, so I spoked to a lady called Veronica and she assured me that she will arrange it, this morning the 18 July 2018 I phoned again and spoke again to Veronica and she said that it all was arranged for yesterday the 17 July, but she will call me back right away and tell me what is going on, never to say that did also not happened. I do not no what I can do more from my side. I am very disappointed in the service I received from House & Home.