Bad Customer Service- Disappointed

On the 16th June I went into Verimark N1 City looking for a vacuum cleaner. The sales associate Serwynn assisted us with going through the demonstration and features of the Genesis Hydrovac Demo which is on special for R3199. We were told if we struggle we don't have to worry as the device comes with a DVD which we can watch at home. 1st red flag. It infacr doesn't. You have to buy the DVD. We then decided to purchase it the machine, but he did not have stock in his store and advised us to pay with him at N1city store and then collect the machine at the Canal Walk store. We arrived at the canal walk store a hour later and picked up the machine. The machine was not opened and checked. It was just handed over to us. The following day which is the 17th June we opened the machine and found one of clips was infact broken. I called the Verimark canal walk store and was told we could bring it in and they would exchange it. We then went in to the store and got it exchanged. We then mentioned to the sales associate that there was no DVD in the box as was advised to us. We were then told that we could purchase it, but it did not come with the device. This is unacceptable as it was sold to us as something that came with our machine. Anyway we left and went home. We then unpacked the device and before the machine was even switched on just plugged in it made a weird humming noise, which did not sound normal. On top of that the bucket was infact leaking! I called the store again, and was told that I need to come back to the store for them to test. I am at this point extremely disappointed in this brand. Beside the defective product, I now had to drive to a Verimark store X4 times and pay for parking x4 times for a faulty product. I then advised that I infact have now lost all confidence in this brand and product. Yes the product was a demo model, but it was by no means a cheap purchase. Over R3k is a lot of money. I was then told they will reimburse me and they took the device back. I'll have to wait 3-4days to get my money back though... Super disappointed in the whole experience, and this will definitely impact the decision when I buy from this store again. Also the store staff really needs to be trained with regards to dealling with consumers. They cannot sell something when it doesn't come with purchase. It is ********* and *******...