Nine West's Unacceptable Denial of Manufacturing Defect Is Beyond My Understanding

Rejection of manufacturing defect: I bought a sandal from the Nine West Akasya Branch. I was only able to wear the product once, and within half an hour, I experienced enough pain to want to take the sandal off. Afterwards, I took the product to the branch, and they first told me to apply olive oil to the shoe and hit it with a hammer. I was shocked and stated that I wanted a solution as a brand, but then they said they couldn't process it without a receipt. A few months passed, and I finally found the receipt for the product. I went to the Nine West branch again, and they sent the product for inspection. In the message I received back from Nine West, they said there was no manufacturing defect in the product, that they sent it back to the branch, and that I could pick up the shoe from there. You create a design that is so bad and non-ergonomic that people can't wear it, and then you say there is no issue with its production. The zipper and the leather detail where the zipper is attached are obviously problematic, which prevents the shoe from being used. It has been 4 months since the day I wore the shoe, and the mark is still on my ankle. Nine West not only refuses to accept the defect but also suggests methods that would deform the product, such as applying olive oil and hitting the shoe with a hammer, to avoid exchange or refund. When I called Nine West customer service, they did not help me either. I will initiate the necessary procedures as soon as possible. Unfortunately, a disappointment. I am reposting my complaint with a photo and still expect a solution to this situation.