Arçelik Refrigerator Fails to Cool Properly - I Demand a Replacement

I purchased my Arçelik refrigerator 2 years ago and I am still using it. The product is under warranty and also has an additional 7-year extended warranty. However, I constantly face problems with the cooling section; my food spoils in less than a day. This causes my groceries to go to waste, forces me to shop frequently, and results in financial loss. I contacted the authorized service three times—once last summer and twice in the past month—but each time they only left a test device, claimed there was no problem, and did nothing. The refrigerator also shows no warnings or alarms. Despite this, the issue continues and I cannot use the refrigerator efficiently. It is clear there is a fault with this refrigerator, and I do not accept being told “there is no problem” without a solution. I request a product replacement and state that until my problem is resolved, I will exercise all my legal rights and, if necessary, apply to the Consumer Arbitration Committee.