Useless defected appliance

I bought a DEFY slimline stove with a warranty of 2 yeas at Game in Ballito in December 2020 but within less than a year of purchase we experienced a defect on the stove, it broke, the four plates stayed on even after main switch is off, we reported. After many hassles it was fixed but shortly afterwards it broke again, 1 plate stopped working and again it was fixed. This year early May all four plates stopped working again and we had to buy a 2-plate stove so we are able to cook whilst waiting for the store to fix the stove for the 3rd time now and it was fixed but 2 weeks ago after being fixed the one plate that once stopped working has stopped working again. I paid R7000 for that stove, I am not sure if they sold to me a 2nd hand appliance because this for a product to be fixed more than once is unacceptable. I believe I shouldn't have allowed them to fix it the first time because I should have received a new stove, however Marlin Pillay at Game in Ballito told me that won't be possible. Urisha Naidu a Manager of DEFY in Richards Bay sent Technician only after numerous complaints and after having to remind them because often I was ignored. I have not received the best service from this two organizations Game and DEFY, it has been a headache dealing with them during my pregnancy, they have put alot of stress on me as I do not know how are we to prepare meals for me and my family. I want my money back, that is the only thing best so I can buy a new stove elsewhere because Game Ballito is pathetic, I regret the day I bought this stove. Hello Peter please help, my number is ***