Makro Cape Gate Unwilling to replace device after 24 hours of failure

Bought a Trimtech Grass Trimmer by Makro. The next day I used it and after 5 minutes it failed. Makro sent it in for repairs, and the supplier quoted to repair it. Google shows multiple complaints about the product. Makro throws their shoulders up and say nothing they can do. If a client wants to waste R799, I would have burned it in fire. Why are you guys selling a product that has known issues.