Dyson Corrale Hair Straightener Not Working, Poor Technical Support

On October 5th, I ordered the Dyson Corrale hair straightener through the official Dyson website. It was delivered very quickly the next day. The brand's website stated that the product can be used wirelessly for up to 30 minutes under normal conditions, and if more time is needed, it can be used with a cable. I noticed the issue with using the cable in the first few days after the purchase because I couldn't use it with the cord. I tried to explain my problem to customer service representatives several times. However, in each conversation, representatives provided different information, indicating the weakness of their technical support. The product was received on October 18 and delivered to the service center on October 26. Soon after, I received a completion of service notification. When I attempted to use the product again, hoping the problem was resolved, I found that the same issue persisted. When I contacted customer support again, I was told that the problem was related to the device being in "airplane mode," and if I disabled it, the issue would be resolved. At this point, I really began to lose faith. First and foremost, I want to emphasize that they do not create a record of the service without confirming the issue through a video call. At the time of sending the device to the service, I activated "airplane mode" to avoid damaging the product. It's very sad that even confirmation of internal processes does not matter in this situation. In the end, I confirmed the issue through a video call and sent the device by mail again on October 30. On November 8, a delivery notification to the service center was received. On November 15, a notification of a problem with the device was received, stating that the product could be replaced. On November 18, I received a call and was informed that the replacement would take 20 business days. I noted that 20 business days were too long. After all, if the team had conducted a check during the first service, they could have detected this defect. Today, I received another call. Despite my complaint, the representative kept repeating about the 20 business days without listening. I have been running after a product that turned out to be defective right from the Dyson factory for two months now. From a brand known for its quality and high price, I expected more professional management of the process. This is a complete disappointment.