Tyre 🛞 damaged

I bought two tyres 🛞 from Hi-Q Welkom on the 4th of October 2023. With an intention to buy two more for the back. To my surprise I haven’t even driven with the tyre 🛞 for a month. The tyre 🛞 has a damage on the side of which while I was driving I noticed that I have a flat and I stopped immediately to change it.

Today 23 October 2023 I went to the brunch to lodge a complain to the manager because this product is not even a month old and already has a damage. The guy told me there is nothing he can do because I damaged the tyre 🛞 and he wasn’t there with me. His excuses were nonsense. He said it could have been a nail that went in and out. I asked how can a nail damage a tyre 🛞 on the side and not underneath? He tells me to claim from my insurance. My question followed when I buy a product doesn’t it come with a warranty or guarantee for a certain period? He said people abuse that.

Kindly assist because I don’t believe that I was responsible. I bought a product and I expect it to replaced. I am not a tyre expert but I can tell this was not a result of a pothole or any object.