Defy fridge

I bought a defy fridge model DAC645 348L the water dispenser never worked, the fridge is not cooling. I had to throw food as they are getting rotten. I send defy a mail and was told to send an invoice to check warranty which I did. Till today no response nothing. No phone call no form of acknowledgement of two emails I send. Fridge was bought on the 05.03.2022 brand new fridge however I am ****ed already. How come a brand new appliance is malfunctioning? I am loosing money as I have to throw food away. I should have listened to my instinct and bought another brand. This is wrong. Only the freezer works and the top part of the fridge is not working. Even if you increase temperature to 5 which is the highest, still looks dead. Fridge is still hot. Had anyone had such bad experience with this model bathong?