Makro john Vorster drive , stove complaint

Makro John Vorster drive. We bought our stove, a Whirlpool 4 plate last year. The front left oven plate stopped working last year, we went there over 2 times to report it the techinican finally came in November/December to fix it, before fixing it he came twice and couldn't fix it only managed on the third time. We told him that the stove is very slow, he said he Also fixed that. After he left within an hour the plate stopped working again. We have reported to makro over 3 times with , Tuesday the 12th May 2020 being the third time, with each time we go there we have been assisted by this older lady at the appliances section, who keeps on saying we should write our name and address and contact details so, the sales person who sold us the stove can call us and set up a technician appointment, to date the sales person Daniel Khoza hasn't called us. This stoves warranty is coming to an end on the 25th of May, we no longer want this stove as it is a nightmare