Poor aftersales service from Hirschs and Defy

Lack of after sales service on faulty Defy oven purchased less than 3 months old. The issue was with the door of the oven, which gave problems a month after purchase. A Defy technician came out and fixed it, but problem occurred again. A second service request was logged on 17 Dec 2025 and an appointment was scheduled for 24 Dec 2025. No technician and no communication. Date then changed to 31 Dec 2025 and then 5 Jan 2026, still no technician and communication from Hirschs is that ticket has been closed. Lack of management communication even though requested Manager to make contact with me.