Defective double door fridge

We bought a double door Defy fridge from fairprice Southgate on the 6th November and after delivery we followed the steps on the booklet to make the fridge operational after 8 hours but the fridge remain hot. We notified the store on the 8th November 2024 and commissioned a technician from Defy, he assess the situation and said that the fridge has no gas and welded at the back because there was a leakage. We monitored the fridge but is still not freezing we made another call to the store (Fairprice) and they called Defy a 2nd Technician was dispatched on the 9th and did his assessment he told us that it's leaking oil and water and it's unsafe and might explode and took pics and said he hand in his report to Defy. We emediately, disconnected the fridge because of the health hazard. The job no is: 525539, we went to the store again on the 13 to ask for the store to refund us or give a new fridge, we waiting outcomes of the 3rd technicians report the there will be decided to replace the fridge or pay the refund. We want our refund and not want a new fridge that needs to be fix Please assist this is unacceptable Regards Emmanuel Soetland