I bought a fairly high quality business shirt about 6 months ago. It got worn once a week, but started to fall apart and discolour despite normal washing.
Took it back to the retailer I purchased it from (which was a specific outlet for that brand) showed them, on a $70 shirt I expected some sympathy after what was maybe 20 wears tops.
The staff were very rude and basically told me once it was worn it was non refundable. I tried to raise the fact it should have some sort of warranty and they got a very sarcastic smile, told me I was washing it wrong and walked away mid conversation.
I know all goods have to be fit for use in Australia, that strikes me as clothing too.