Bad service!!!

We bought a Defy fridge in October 2020(cash). Six months later, when we got home to take out meat to start dinner, all the meat was defrosted and rotten. We logged a call last week Monday, 26 April 2021, and got our job number. Up until today, when they said they sending a technician, we ha e had no feedback or any technician in site. I called them twice and all they say is they will escelate the call. We are sitting with a broken, brand new, fridge and all our groceries are going off. Under warranty, we should actually be getting a new fridge delivered to us and they should take this one back for repair. I need help.