Poor Quality for a High Price - New Balance

I bought shoes online from NewBalance. After 6 months of wearing them occasionally over weekends one of the soles came undone. When I queried this with New Balance I was informed that their “highly specialist” team found by merely a picture on email it happened due to wear & tear. Look, if it was a cheap shoe it would’ve made sense, but in no way shape or form did it come cheap. Their reply was that they will be so kind as to give me 30% off my next purchase … guess what … there will never be a next purchase