Samsung — Refrigerator

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Last one year they are coming and repairing it but it’s still not working even today. It’s causing financial and mental stress on me now.
Already have changed pcb board 5-6 times in year.
For which i have to pay hefty amount of 5-6k few times as per their policy warranty of repaired parts is only 3 months.
They repair it but within few days or hours it’s stop working. Now from last 10 days they are not even able to repair it properly. Just giving me time today tomorrow in this peak summertime.
It’s causing mental stress now as refrigerator is one of the essential equipment in home.