I bought a pair of Nikes for > $200 which was my first mistake. I have had them a little over 18 months but have not worn them out all that much having been in lockdown etc. I went out in them the other day and found that the air bubble had burst and it seems to be super common for this design.
I have tried to return them to the store that I bought them from with a receipt asking what can be done. I was turned away and saying they won't take them back. Has anyone here had any luck returning Nikes with a defect? I have learned my lesson and wont pay full price for sneakers again.
There is some viral video that Nike have a 2 year warranty in the US at least (when you flick from the US site to Australia they get a bit vague and the 2 years disappears).
Try hitting Nike up on their chat/phone and see if you can get a refund or Nike store credit.
https://www.nike.com/au/help/a/shoe-warranty-gs