Poor service by Makro & Bosch

I purchased a Bosch dish washer from makro in October 2019 and paid R7000. 00 for the dishwasher. In January 2020 I had a problem with the dish washer and contacted their call centre (30 January 2020) to complain that my Bosch dish washer did not dry and clean my dishes properly and that there was a smell eminating from the dish washer. A week later a technician comes to my house, enters the driveway, reverses out and leaves. I managed to stop him on the road and he tells me that he will be coming the next day. He comes the next day, enters my driveway and does not knock on the door, before I could get to the door he drives away. I contact makro again and given a second reference number. Thereafter the call centre contacts me two days after and tells me that they are coming today and that they are trying to contact me. He also states that they tried to contact me previously but to no avail which I thing is nonsense as my phone is switched on at all times and nor did I receive a message stating that a certain number tried to contact me. I thereafter give him am alternate number just in case. 15 Days later they still haven't come to sort out my dishwasher. For paying so much and using the machine for less than 6 months, the customer service is absolutely terrible.