Question about Fairphone Fairbuds XL 2023

I have had, or rather my wife that got these for her birthday last year, a rather disappointing experience with the plastic breaking where it goes into the head band. Right at that line, probably the repeated times she put It on, it now has a fine line on one side and it is already broken on the other side... I hope someone can help me figuring out if this is under warranty or not? Otherwise they work great, but apparently daily usage tends to wear the plastic fast...