Items loses its quality very fast - for super high prices and dismissive after sales service

I have been an avid fan of Burnt's clothes for the past few years, encouraging everyone at training and the gym to support them, especially as they're local. Clearly they're doing very well if you look around SA's gyms. Recently however, two items I had purchased within the past year, deteriorated terribly. One was a cap which completely lost its colour after only a few wears to gym. The other was a pair of shorts which completely lost its elasticity - bear in mind these shorts cost R1000+. After getting in touch with Burnt, they simply said it doesn't make sense and sorry but they can't do anything. Clearly and unfortunately their Chinese suppliers still have a long way to go if they want to compete with the prices and likes of international giants such as Nike, UA etc., whose clothing items last me for years - tried and tested.