Nespresso Grand Latissima F541 Chronic Defects & Bad Customer Support

I purchased the Nespresso Grand Latissima F541 coffee machine from Ankara Optimum Teknosa store. Despite initially considering another model, I was persuaded to buy this one. When I mentioned chronic defect complaints online, I was assured with, 'There are absolutely no such complaints, we've never had any problems.' However, shortly after using the product, I noticed the chronic heating and frothing issue with milk. When I returned it to the store, it was sent for servicing, but as it couldn't be repaired within the legal timeframe, it was replaced with a brand new one. Yet, on its fifth use, the same issue occurred again. Upon informing the store, I received the response, 'Is it just happening to you? We've never encountered this.' I haven't been able to properly use the product since I bought it. I paid so much money for a mere ornament at home. Currently, I demand a refund or exchange with another product at the current prices. I don't know what will be done about the price difference and the distress I've experienced, and no one is providing information on this matter. I will file a complaint with the Consumer Arbitration Board as soon as possible. I fail to comprehend how a company can continue to victimize customers without taking responsibility for its mistakes. I will initiate the necessary procedures on Monday and lodge a complaint against the Nespresso brand, as well as the Ankara Optimum Teknosa store, for unfairly victimizing people for their own profits.