HISENSE AFTER SERVICE DISASTROUS

Purchased a Hisense double door fridg/freezer. Product still under warranty. Fridge not cooling freezer not freezing. Reported to Hisesnse 27/03/2019. Filled out required doccumentation by 28/03/2019. I have received no feedback or correspondance from Hisense or the service provider 05/04/2019 I have lost food due to the breakdown as well as spent hours trying to get some assistance to no avail. Please can Hisense give me my money back so that I may purchase a better brand refrigerator as their after service is in a shambles clearly.