Defy 42L Convection Microwave and lack of After Sales support

I bought 2 Convection Microwave Oven's from Game Canal Walk, the additional one being for my mom. Noted in the manual are the accessories and their uses and it clearly indicates the rotating base, the metal and glass trays and the metal stand. It also states that the tray must ALWAYS be in place during operation. However the glass tray wobbled all the time when in use. I notified Defy and Mr Cilliers, *** call centre supervisor was kind enough to send a technician to my mom's house at the end of October and the technician then told me that the glass tray cannot be positioned on top of the rotating base as the grooves do not fit over the shaft, the glass tray has 3 prongs whereas the shaft accommodates for 4 prongs. In other words, I had the wrong glass plate. He advised that I pop in at Game and see whether their demo model has the same problem. I did this the following weekend and Game's demo model was missing the shaft so they could not see what I was talking about. The lady at Game, Kashifa however opened up a box containing same model and could then see what i was talking about. She promised to contact Defy and find out why the boxes contained a plate that could not fit and a Defy rep , Adele on seeing the product, told Kashifa that this oven does not come with a glass plate but due to customers complaining, Defy decided to include a plate as an extra. I am not sure why no one else complained about it but I refuse to accept such an explanation as I do not understand why the manual would refer to a glass plate and Defy suddenly decides to throw in any glass plate just to satisfy customers. I then contacted Mr Cilliers via email on 20 November advising him on Game's response. I never heard back from him and I called the call centre on 29 November and spoke to Judith requesting feedback. She put me through to Mr Cilliers who told me that he was waiting to hear back from Adele but that he will respond by the end of the week. To note, I followed up 9 days after my email and he was still waiting to hear back from her? Needless to say, I never got a call from him which led me to calling the call centre again, requesting the regional manager's details. I was referred to Andrew Baker in the Western Cape but he is on leave, thus was routed through to someone called George. I told him the story and by his feedback, it seems he knew exactly which convection oven i was talking about. He told me that he will go to the storeroom to have a look at it and then get back to me by the afternoon (6 December). No one called me and i called Defy once again but the receptionist told me George's line is busy. She gave me the option of holding on or leaving a message, i asked to hold on which I did for 30 secs when she got back to me to say she will rather take a message. I refuse to wait another day which inevitably will be a 'no response' hence my review on hellopeter. I paid quite a bit of money for these 2 ovens so I refuse to accept a defect.