Terrible service from tevo

We purchased a Bennett Read Tevo vacum cleaner from the game stores Newcastle mall kzn on the 27/11/2017. On the 16/04/18 I took the vacum back to game stores as it was making a strange noise. They took the unit in and said it will be sent to check whats wrong with it. A few days later I received a call from Tevo customer services requesting me to send them a copy of my proof of purchase. I then adviaed them to request it from game stores as I am unable to fax. The next day I received a call from game store requesting proof of purchase. A few days later a lady by the name of Jennifer from tevo customer service called advising me that I need to pay R930 for them to replace the motor on the 4 and a half month vacuum. I them told her that the vacuum is still under guarantee and why should I pay. She then told me that there was no proof of purchase and that the vacum is under warranty. She was very rude to me and said that I must then go to game atorss and see the manager. The next day I went to game stores customer service qherw they then called the tevo guy. I explained to him and he then called up tevo customer service and spoke to someone else. He then advised me that the vacuum is still under guarantee and that I would get it replace within a few days. I waited and no one contacted me. We then called tevo head office speaking to farhad assured me that he would sort out. He then calls today and says the vacum has been there for the past week and no one has contacted me as yet.