Adidas spikes torn within 3 months and we cannot get a refund

We bought a pair of Adidas spikes at the adidas shop in sable square Cape Town on 21 September 2025. My son ran 3 competitions in it, 6 races. When he practise in it, last week, it tear. So its literally 3 months, 6 races. This is bad quality. We also bought a pair earlier this year also from Kloppers Sport in Brackenfell and that also tore within 4 months. And the store said they cant refund it as it is on sale.

For this type of brand, this is an absolute disgrace.

We have had other brands in the past and it lasted long. We thought that we buy a good brand but 2 pairs of spikes in 6 months and both tore is a bit sad.