Dyson Failed to Replace My Melted Airwrap Attachment Despite Warranty Promise

I purchased a Dyson Airwrap in August. One of the attachments melted. When I contacted customer service, they said they would send a replacement under warranty. Since they didn’t have it in stock, a pre-order was created. Later, the order was canceled, and I was told to call customer service again. When I called, they told me to go to an authorized Dyson service center. I took the entire device and its parts there, but they told me they would give me a different, larger attachment, which I refused. They then told me to contact customer service again. I called, and another pre-order was created. After 3-4 weeks, I was notified that my order had been shipped. However, the product they sent was a different color and model. I rejected it and returned the package. I was told there was no need to call again and that the correct order would be placed. Despite this, I called again, and the customer representative placed an order for the larger attachment. I called once more, and this time, Dyson told me I would be contacted. When I was finally called, the representative said that the part’s stock code was not available, so they couldn’t create a pre-order. The relevant department was still waiting for the part code. However, I was told that I would not be contacted again and that I should call periodically to check the status. How ridiculous is this? Am I supposed to waste all my time on this? You pay so much money for Dyson, and they still fail to provide proper customer service, leaving their customers at a disadvantage.