Terrible service

I bought a Hunter irrigation computer in Dec 2020, it has a 2 year warranty, the unit failed in Dec 2021 i returned the unit in Dec 5 2020, I requested a replacement unit instead of my cash back. Takealot returned my cash and when i complained they said they changed suppliers, i told them that is not acceptable as they have to honor the warranty as a new unit costs more than what they paid out. They then removed my credit and advised they would get me a replacement unit. Its been 2 months now and no response from Takealot i call 3 times a week asking for this to be escalated to a manager, no one calls me no one gives me feedback. I am without my purchase and without my money. The returns department are useless. I AM FURIOUS