I purchased new Gerni hose yesterday, because we urgently needed to clean our driveway. The hose leaked badly, so I used thread tape, then a sealant, but neither worked. When returning the hose was told because I used thread tape, I modified it and have no warranty.
I was disgusted and left with my receipt. I left the new hose on the returns desk, as its useless for the purpose I bought it for (Pretty sure its law that the item must work?) The worst customer service ever. I liked visiting Bunnings on the weekends, but never again.