Exchange of refrigirator

I bought furniture on the 6th of September 2018 at OK furniture in Springbok, the Hisense refrigerator I bought was not working I called the store and informed them they told me my complaint will be attended to, I waited and then decided to make a follow up I was informed to submit rellevant documents, I submitte the complaint officially end of October 2019. I heard nothing from them I made follownup and I was informed they are waiting for credit approval from Hisense. I decided to go to the shop in December the branch manager told me they had received approval for credit and would deliver the replacement refigirator, this was informed by the branch manager. The branch manager told me she will call me to arrange for delivery on a Sunday. I had not received a call then I decided to call for follow up she told me she had no driver the driver was off sick and promised to call. She never called me, I contacted their complaint contact number on the 2nd of January and I was given the regional Managers contact number. I called Patrick on the 2nd of January 2019 and told him my complaint, he said that he will call the branch Manager to resolve my query. I have not received a call from the Regional Manager nor the Branch Managernof OK Furniture in Springbok. I have been buying fruits and vegetables in hope for my refrigirator to arrive and they have all spoilled ssince I am waiting for my refrigirator. Please assist me.