Unhappy with service

I bought a Hisense fridge 2022 September. Batch NO. B -CS9M FM H370BMI -WD. The fridge constantly needs regassing. I laid a complaint with OK furniture at Phillipi the junction Mall where I bought it. The technicians came to regass but I'm experiencing the same issue 3 months down the line. My food is rotting because the fridge no longer goes cold,even the freezer is too warm even setting it to the highest number does not work. It's too soon for the fridge to be needing regassing so much and yet it's still under warranty. Kindly resolve this with the store as soon as possible.