Takealot product broke within 3 weeks, denied a

I ordered a garmin watch strap off takealot which was delivered on 5th March, 3 weeks later on the 29th of March the strap broke and I logged a return for a replacement strap. The watch was collected, accessed and I’ve been denied a replacement. I didn’t even request a refund, but just a replacement. How is this acceptable!? That items that are bought not last even a month - 3 WEEKS and not be replaced. And I can’t get through to any customer care person. Shocking service.