Dyson V15 Submarine Arrived Defective and Store Refused to Process an Exchange

The V15 Submarine vacuum cleaner I purchased from Dyson arrived defective. The battery was dead, and it wouldn’t work. They also provided the promotional charging stand that came as part of a Black Friday deal. When I went to the Maltepe Piazza store for an exchange, I had the vacuum cleaner’s box, but we had thrown out the box for the promotional item. They refused to process a return or exchange because of this. The product arrived defective, and the promotional gift, which was supposed to boost customer satisfaction, has become a burden for me. It made me wish I had never accepted the gift. Should I be upset about the defective product or the countless trips I’ve had to make to the store? When I called customer service, they told me the invoice hadn’t been issued and the product wasn’t registered in my name. Previously, they had opened a complaint under a completely unrelated hair product, wasting even more of my time, only to offer no solution and suggest sending it to service. They turned this into an even bigger ordeal, saying the service would decide on the issue. Despite seeing the defect at the store, they refused to take the initiative to exchange the product. The Piazza store staff made the experience even worse by giving me conflicting information and leaving me deeply disappointed.