Defective Adidas Football Cleats

I purchased a pair of Adidas football cleats from Boyner for 1679 TL, and after only about five uses, both of them tore apart at the sides. It's shocking how poor the quality is. I bought them at the end of September, didn't use them during winter, and in May, I took them back to Boyner for testing. They sent them for evaluation and claimed there was no manufacturing defect, thus rejecting my refund request. However, they advertised them as having a one-year warranty when selling them. I demand that Adidas honors its promise. I will never buy another Adidas product again, and I will not recommend it to anyone else either. Boyner's failure to address this issue and honor its warranty is extremely disappointing.