Terrible customer service from whirlpool technician

I bought a whirlpool microwave and oven from Marko Centurion last year, the microwave locked, and we cannot use it. I reported this to Makro Centurion on the 4th of January 2023 which they logged a call with Whirlpool on the 5th of January 2023. I was advised that the technician will call me to book an appointment. I got my first call from whirlpool on 11 January, I missed their call, but I called back in less than 15min, the consultant advised they have been calling me which was not the case as this was the first call I had. To cut the long story short they advised the technician will call me. This time the technician called me on the 12th of Jan around midday saying he is in the area and wants to come. I advise that he needs to set up a time in advance as advised so I can ensure there is someone at home as Im not a housewife, he rudely responded that he does not set appointments and I should ensure there is someone home at all times. I then told him he must come on the 13th at same time around midday, which he did he called me around midday asking for my gate number and pin to enter which I sent, few minutes later he called me shouting at me asking me which house is mine. I advised i don't appreciate him shouting and he dropped the phone and switched it off. The phone was on voicemail when I tried to call back and he never went to my house. My address was provided to him by Makro and Im not sure why he could not use GPS. The contact number of the technician *** I unfortunately never got his name as he has been rude from the first time we spoke.