OK Furniture Wynberg Bad Customer Relations

I bought a lounge suite on Tuesday 27/12 at OK Furniture in Maynard Mall Wynberg. I paid cash. I was promised that the lounge suite would be delivered on Wednesday 28/12. By 16h00 on Wednesday I called OK Furniture and spoke to Aisha. She apologised for the delivery delay and said that "someone was supposed to call you". She promised me the lounge suite would be delivered this morning 29/12 (thursday). At 11H00 today I called again to ask about the lounge suite as it was not delivered. I spoke to Aisha again. She continuously called me "my dear" and told me that she never said "in the morning". She told me she had said that she would contact me. No one contacted me. She was very rude over the phone and continued to insist that she never told me in the morning and she called me "my dear" repeatedly. This is not the way to speak to a customer. I am not her "dear". I am not her family or her friend. She was extremely rude and argumentative and wouldn't redirect the call to a supervisor when I asked to speak to one. I was not alone when I received the call from her on Wednesday when she said in the morning, my aunt was with me and also heard her clearly say "in the morning". Accusing customers of lying and treating customers with disrespect is not professional behaviour. Does OK Furniture do any customer relations training with their staff? I am very disappointed in the way I was treated and with the delay in the delivery of my lounge suite which paid for in cash. Not on credit.