Shocking service from AEG

I purchased a fridge/freezer in December 2018, due to construction of our house, we only started using it the 19th February 2019. For the past 2 weeks the fridge or freezer makes a loud high pitched noise and it stops after about 30 min. I have contacted AEG to please assist with sending someone out to see what this problem is. Beverly Makhene has not responded to any of my emails, I then sent everything to Grace Voyiya who doesnt respond to my emails and doesnt return my calls. The service received thus far from AEG is shocking . Makro highly recommended AEG over other brands but we are in total regret for not going for a different brand.