Bought brand new freezer not in working condition

I bought a KIC freezer on the 26th of November at 16:46, I was advised to use the freezer within 48 hours, I started using the freezer but it did not work I phoned Monday 30 November to inform them and was advised to wait another 24 hours. After waiting it still did not work. Yesterday at 11:00 I phoned to explain that it still did not work and I want to return it for a brand new one, since it is still within the 7 day period. The manager informed me that I had to inform them within 24 hours after purchase how is that possible if I had to wait almost 72 hours to use it? He said they will send out a technician within 24 hours to check it & Im still waiting. First of all how can they expect me to pay for a brand new freezer then I have to wait for a technician to fix or assess it, then I could have fixed my old freezer. I want a brand new freezer in working condition or I want my money back. It is really frustrating to get such service and it makes me furious to get such a response from a manager that I had to return it within 24 hours how is that possible? Im still waiting for the technician and I refuse to keep something that is not in working condition that should be brand new.