Hisense poor service

Good day I bought a double door Hisense fridge from Makro and as features it has a Ice maker and water dispenser. The ice maker stopped working and I reported this to makro on 28/10/2020 who in turn reported it to Hisense. The fridge was still under warranty as the warranty only expired on 2/12/2020. Since then I had about 6 techs come out to address the issue and then they leave not giving suitable answers. Every time a new tech comes to address the problem to no avail. I have written numerous mails to Hisense contact person Thuli to keep this issue alive and the last mail I was told by her to contact the technician. I did so but it took time to explain who I was then I am told a new door will be ordered. Hisense itself does not share the same sentiments. I have had numerous reference numbers and every time a new story. Since the last technician came the water dispenser stopped working the day after they were here. This now becoming a big headache and I do not know what to do anymore. It is impossible to contact a senior person at Hisense to air this grievance. this has now been going on since 28/10/2020 to date. Please advise.