Bad customer service

I did a layby of a Washing machine with Electric Express store in Jabulani Mall. I went to pay it off and was told that I should go and pay at Joshua Doore. The balance I paid was R4479 which totals to R5679 incl the R350 delivery fee. This was last week and to date Joshua Doore has not delivered the machine. I have phoned them several times and they told me their system was slow or they were fetching it from the warehouse and it would be delivered. It upsets me that I paid cash for this machine and they behave as though I owe them. Their customer service is disgraceful. Why did they take the responsibility from Electric Express if they were going to fail their customers? I requested for a refund and am still waiting for their system to be functional. Never will I buy anything from them again and demand for my R5679 to be paid back to me so I can purchase my machine from Stores who know and understand the 3 C's of customer satisfaction, which are Customer centric, Commitment and Customer care. They lack all of them and are don't know where their bread is buttered.