Defective product and shocking after sales service from Cadac South Africa

We purchased a Born Free Adventure Stove in December 2024. We used it for the first time on a 6 week long camping trip in May. The stove was dangerously faulty from the first time we tried to use it, with a leaking hose connection (the hose that joins the two plates) and one plate that did not work. We did not use at all for the rest of the trip (luckily we had a second, small hiking stove with us as well). Since we got back, I have tried to get a replacement from Cadac and have been either ignored or fobbed off. Utterly unacceptable customer service from a brand that I though I could trust.