Poor quality of shoes

The Birkenstock Profi Birki polyurethane chef shoe is rated as the best chef shoe. My daughter (chef) has worn, Johnson chef shoes (as student) and Rebel glider chef shoes. Both these pairs of shoes were worn for more than 3 years each and NOT ONE OF THEM DEVELOPED A CRACKED SOLE WITH IN 7 MONTHS. She gave them away when she got her Birkenstock shoes.

I am extremely disappointed in the poor quality of the Birkenstock Profi Birki polyurethane chef shoes. I ordered these shoes in April 2023, she started to wear it in May 2023. In November she saw the crack in the sole of her one shoe.

The only response that I get from Birkenstock is that defects can only be returned within 6 months after purchase. If your shoes is of such good quality why does it crack within 7 months? For the price you pay, you would at least expect that the shoes will stay whole for more than a year.

I am unsatisfied, as your company does not even try to assist me or look at the shoes. I will never buy Birkenstocks again and will also not recommend it to anyone.