Superbalist and Birkenstock not taking Accountability

I Purchased a Pair of Birkenstock on Superbalist in February 2025 between that time till now I wore it twice and on the second time of wearing the Birkenstock Gizeh in the Big Grocery Store my foot felt Loose ..I looked down and saw the Name badge was off and it came loose a brand new new pair of Birkenstock, I contacted Birkenstock as it’s their brand Evan though I purchased it from Superbalist . Birkenstock came back to me and said I should take it up with Superbalist …Now I own sooo Many Birkenstocks and not once has this ever happened Evan to my regularly worn or everyday Birkenstocks…I expected them to either fix or replace since I have the receipt and the box aswell as pictures of how Brand new and Clean it looks…I am disappointed and disturbed with the responses on both ends I recieved as they are clearly saying after 6 months a factory fault cannot be a Mystery or just a happening..I’m looking for the regional Manager contact details so it can be assessed personally. I will not be leaving this just here as I spent my hard earned money buying the brand and I’m left with a Sour taste of no Customer Satisfaction..now I understand if it was a old pair …but this was and is out of my control and none of the businesses want to take Accountability…I Love Birkenstock but this Customer service leaves me feeling a certain way and Superbalist just lost a Customer…I have made countless orders during my years but just here it ends.